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leopard Geckos

leopard Geckos

Saturday, February 12, 2005

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Name: Leopard Gecko
Scientific Name: Eublepharis macularius (Eublepharis: meaning real or true eyelids and Macularius meaning spotted)
Range: Found in Iran, Afghanistan, Western India, and Pakistan.
Habitat: Reside in deserts and arid grasslands.
Status: Not Endangered
Diet: Crickets, meal worms, and pinkie mice. All foods must be no longer than half the width of Its head.
Supplements: Food should be supplemented with calcium and multivitamins.
Location in the Zoo: Herpetarium
Physical description:Leopard Geckos reach a size of 8 to 10 inches. Some leopards have grown to 12 inches. Most adults are yellow with dark brown spots. The tail is banded white and light black, they are white on bottom. Young geckos are generally banded yellow and dark brown which fades into the spotted pattern as the gecko matures.

General information:
Sex: The male geckos seem to have a broader head and neck than the female and the bodies are somewhat larger. Egg Laying: During the year, the female lays several clutches, each of 2 eggs.

Special anatomical, physiological or behavioral adaptations: Unlike most geckos, which have fused transparent eyelids, this species is one of the few with movable eyelids (a primitive characteristic in the gecko family). Its legs are long and thin and it holds its body well off the ground when it runs. Shedding: Leopard geckos skin does not come off in bits and pieces, they bite on to their skin and eat it to get vitamins from it, so there is not any skin left behind after shedding.
Comments about the geckos of the Fort Worth Zoo: I didn't exactly get a chance to speak to a specific gecko keeper, but I did speak to a zoo personnel. The did inform me that there is not much trouble in caring for these geckos compared to the other animals at the zoo. "They are active creatures that love to run around." But due to the fact that there is not much space provided for these geckos, they are kept in a small tank.

Personal Observations: The leopard gecko or just geckos in general amaze me. I myself had a gecko but he did not last to long. After doing my research, I know now what I did and didn't do correctly. I feel that I got a lot accomplished in my research

Friday, February 11, 2005

INFO >>>

This lizard is one of the most popular reptile pets in the United States today. Dramatic color changes occur from hatchlings to adulthood. The common name derives from the adult coloration, which is a yellowish-tan body with dark spots. In juveniles, these spots are typically large bands or bars that cross the body and break apart into spots as the animals mature – this means the yellow/tan base color is more prominent in juveniles as well. As many color morphs are being bred, the base body color can range from white to tan to very bright yellow. The spots can be black, brown or purplish. Sport varieties are being bred regularly that may have no spots, stripes, large blotches, cross bar patterns or stripes that run from head to tail rather than across the body. The most difficult part of choosing a Leopard Gecko for a pet is usually determining which color pattern is desired. Average adult size is 6" - 9". The tail is relatively short and fat compared to many other lizards and the skin is dry and "warty". The head and eyes are also rather large and prominent. The oversized eyes give a very "personable" appearance. Legs are short and compact indicating this lizard is not designed for running long distances or excessive climbing. The toes are clawed and do not possess the enlarged climbing pads found on many other geckos species. Adult males develop larger heads than females, have a larger hemipenal bulge at the tail base and a set of femoral pores in front of the vent.
Captive Breeding Status: Virtually all leopard geckos sold in the United States today are captive bred. A few imports still occur, but these are usually bought immediately by large-scale breeders who want to broaden genetic diversity and maintain strong blood lines. The immense success of captive breeding on these lizards has been a mixed success story; once breeders were able to sell as many as they could produce at fairly high prices, but now competition and supply has made this much less lucrative though still educational and enjoyable. Few breeders actually profit, but some can earn enough to pay for food and ongoing supplies if they work hard.
Native Range/Habitat: Leopard Geckos are native to Central Asia, especially the semi-arid areas of India, Pakistan, and Afghanistan.
Diet/Feeding: This species is a fairly strict insectivore. Live foods are almost requisite and include crickets, mealworms, wax worms, butter worms, or wingless flies. In general they are very good feeders and should be fed 3-6 insects per day. Like most lizards it is important to give them a calcium supplement, such as Tetra ReptoCal, about 3 times per week for juveniles and once to twice a week for adults. Also, because feeder insects are frequently emaciated and malnourished from shipping, it is recommended to feed (gut load) them for 1-2 days with a multi-vitamin/mineral powder prior to usage. Tetra offers ReptoLife Plus for enhancing feeder insect nutritional value.
Housing: Leopard Geckos are among the easiest of lizards to house and care for. An adult will require a 29 gallon aquarium or equivalent (30" x 12" x 16"). Substrate should be reptile safe sand, newspaper, sterilized mulch or astroturf. Sand or loose, dry soil is their natural habitat and aesthetically pleasing. It also conducts heat well. Heating should be provided by a radiant heat lamp placed over a flat rock, log or basking area. Basking temperature of 82ºF - 86ºF is recommended. A hide-box away from the heat source will allow the animal to self-regulate itself and provide shelter and comfort. A specialized light bulb that provides UV-B wavelengths is also necessary. Although they originate from a dry area, an occasional misting is usually enjoyed and a "moist" hide-box or shelter with dampened moss or vermiculite is beneficial especially at shedding periods, when dry skin can cause patchy or incomplete shedding.
General Comments: Leopard Geckos are one of the best pet lizards. They tame well, are docile by nature, good eaters, do not grow overly large, and are colorful. The most difficult aspect of caring for them is the constant supply of live insects as they do not take well to commercially prepared diets.

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The Leopard Gecko (Eublepharis macularius)

The Leopard Gecko, Eublepharis macularius, is an ideal pet: it is small, inexpensive, and easy to care for. Its husbandry requirements are much simpler than those needed to keep a Green Iguana, for example, and they are bred in large numbers by lizard hobbyists. All of these attributes-plus their uncanny "cat-like" characteristics-have made the Leopard Gecko the most popular gecko in the pet trade.

The Leopard Gecko gets its common name from its appearance: this lizard sports a multitude of black spots and blotches on a yellow background coloration (the belly is plain white). Fancy color phases have appeared on the market in the past few years, and high-yellow , "orange", and leucistic Leopard Geckos can be found at reptile breeder expos commanding top dollar. As with feline Leopards, no two Leopard Geckos have the same exact pattern.

Adult Leopard Geckos reach eight inches in length, and can be housed singly in 10-gallon aquariums. If you intend to breed these lizards, a colony set-up is most efficient. Many breeders house one male with three to six females in a plastic sweater box (punch holes in the side for ventilation first) or rubber tub. Do not keep more than one male per enclosure as geckos are highly territorial and males will fight for dominance.

These creatures are native to the rocky steppes of Iran, India, Afghanistan, and Pakistan, so they require temperatures of 82°-90°F during the day; the cage can drop to room temperature (68-70°F) at night. An under-cage heater or incandescent light bulb suspended at one end of the cage can be used to reach the proper temperature.

Sand makes an attractive substrate for the cage floor, especially if this will be a display cage, but newspaper is more practical if you do not mind the appearance. Add a shallow water dish, a log or rock for basking under the light, and a hide box and your gecko is all set.

Leopard Geckos are carnivores and will eat a variety of food items: crickets, meal worms, king meal worms (Zoophobias), and newborn pink mice are all accepted enthusiastically. Offer wax worms occasionally as a treat. These animals are not picky eaters, and will attack most prey items with gusto. Dust insects with a vitamin/mineral supplement once a week to boost the prey animal's nutritive value.

These are nocturnal lizards, so do not expect to see too much of your Leopard Gecko during the day. However, once the sun sets be prepared to be entertained. Leopard Geckos have fun personalities, and they explore their habitat after dark. Toss a few crickets in the cage, and watch the show: these lizards stalk their prey carefully, and are extremely lion-like in their movements. After cautiously sneaking up on an insect, the Leopard Gecko pounces on its prey, grasping it in its powerful jaws and holding it there, motionless, until it can maneuver it deeper into its mouth.

Once you've discovered the joys of owning a Leopard Gecko, you may want to try your hand at breeding these lizards, as they are one of the easiest reptiles to breed in captivity. All you need to get started are two geckos (a male and a female), the housing set-up as detailed above, and a nest box. Check out Geckoes: Biology, Husbandry, & Reproduction by Henkel & Schmidt (call 1-888-7-REPTILE) for more information on these fascinating "little lions", and you may enjoy a long relationship with your new pet (these geckos have been known to live over 20 years)!



Eublepharis macularius, is an ideal pet: it is small, inexpensive, and easy to care for. Its husbandry requirements are much simpler than those needed to keep a Green Iguana, for example, and they are bred in large numbers by lizard hobbyists. All of these attributes-plus their uncanny 'cat-like' characteristics-have made the Leopard Gecko the most popular gecko in the pet trade.
The Leopard Gecko gets its common name from its appearance: this lizard sports a multitude of black spots and blotches on a yellow background coloration (the belly is plain white). Fancy color phases have appeared on the market in the past few years, and high-yellow , 'orange', and leucistic Leopard Geckos can be found at reptile breeder expos commanding top dollar. As with feline Leopards, no two Leopard Geckos have the same exact pattern.
Adult Leopard Geckos reach eight inches in length, and can be housed singly in 10-gallon aquariums. If you intend to breed these lizards, a colony set-up is most efficient. Many breeders house one male with three to six females in a plastic sweater box (punch holes in the side for ventilation first) or rubber tub. Do not keep more than one male per enclosure as geckos are highly territorial and males will fight for dominance.
These creatures are native to the rocky steppes of Iran, India, Afghanistan, and Pakistan, so they require temperatures of 82�-90�F during the day; the cage can drop to room temperature (68-70�F) at night. An under-cage heater or incandescent light bulb suspended at one end of the cage can be used to reach the proper temperature.
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Wednesday, February 09, 2005

Breeding Leopard Geckos


The Geckos: You obviously need at least one male and one female to start breeding Leopard Geckos. You can also keep one male with a few females depending on cage size. I keep a variety of setups. My best one (I think) is a 33 gallon "breeder" tank that has floor space of 36"x18". It contains one male and three females. There are branches to climb on and logs to hide in which gives them more space to walk on. I don't think that it is overcrowded. How to tell if your geckos are male or female? Try my "Male or Female?" page for a brief description and a photo.
General & Gecko Pre-season Conditioning: You need to make sure the female has enough calcium all through breeding season (Feb.-Aug) and that she stays well-fed. You can leave the calcium out in a low dish (I use small plastic bottle lids like the ones that come on Rep-Cal or Herptivite cans) and she will take it freely when she needs it. I actually leave the calcium in the cage like that year round. The males will sometime lick at it if they need it too. You don't want them to eat the sand to try and get calcium. Also dust the crickets every other feeding during breeding season. (Don't use a calcium supplement with D3 added as too much D3 can be toxic.) Leopard Geckos get plenty of D3 from the crickets and mealworms they eat. Start this conditioning in early Feb. to ensure healthy parents and offspring.
Cage Preparation: First of all you will need to put in a laying box for her and leave it in there all the time. I use old tupperware or similar with the lid on. Cut a hole in the side big enough for her to get in to. Fill the box about halfway with moist (not soaking) vermiculite or perlite (from a plant nursery). She will go in there when she is ready and start digging. (All of the geckos will enjoy the moist box as it aids in shedding too.) That container on the right is about 4.5 inches wide by 8 inches long by 4 inches high. This is a nice sized laying box for 1-3 females. Check it often during breeding season. The clear sides help as you can lift the box up and look thru the bottom to see where the eggs are located much of the time.
Laying: You will know when she gets eggy because you can see the 2 eggs in her right through her skin. Trust me, you will know. She will most likely lay eggs about once every 2-4 weeks so you can see why she needs a lot of calcium. She may start to refuse food when she is about to lay. Most likely there will be vermiculite spewed out of the tupperware as she begins to dig also. She will dig quite a hole in the vermiculite as you can see in the picture to the left. You will also notice when she has laid her eggs because she will be a lot skinnier. Then you just remove the eggs and incubate them. IMPORTANT: Do not turn the eggs over. Transport the eggs in the same position they were laid to the incubator.
Your gecko will be ravenous now so be sure to feed her to keep her weight up before she refuses food the next time. (Definitely dust the crickets for feeding after laying. She needs to get her calcium levels back up. A healthy well-fed gecko will have no problem laying eggs all season. But you have to keep an eye on her to make sure her tail stays nice and fat. If your gecko appears particularly weak after egg laying you will want to remove her from the male for a time until she gets her strength back
Incubation: I use an old cage called a Neodesha cage. I cover the little screen at the top with foil to keep the temperature and humidity constant inside. I put a thin mylar heating pad under it and attach a thermostat to keep a constant temp. (There are thermostats available from a number of places including your local pet store or a wider variety is available from places like Big Apple Herp in NY.) In the cage, I put another larger tupperware box or plastic shoe box filled almost all the way with moist vermiculite (moist not soggy). I put the top on it but the top has small holes in it. This is the hard part. Try to get it to stay very humid but not too wet so as to get moldy. You have to experiment with this. The remote temp detector thing from the thermostat gets placed not only in the cage but into the vermiculite in the shoe box. There should be some condensation inside the shoebox but it should not be dripping. Water will have to be added periodically to keep it moist. This is a judgement call and depends on your set-up.
Temperature - Dependent Sex: I set the thermostat to keep a constant temp of 81 degrees. This ensures that I get all females and can keep them together later if they don't sell. If you want males you can keep them at 87-88 degrees to be sure. 85 is supposed to get about half male and half female but then you can also get hot female and cool males that don't breed well or at all. You just put the eggs in there buried about halfway and incubate away for about 6-8 weeks and instant geckos!
Rearing the Hatchlings: They don't eat for about a week or until the first shed. I usually let them tool around in the incubator on the vermiculite for about 2 days before I remove them to individual plastic shoe boxes with paper towels for substrate. They hatch with a yolk sack attached much of the time and I have seen them scrape it off on the paper towels. That is why I leave them in the vermiculite for a couple of days.
I keep the hatchlings separately in plastic shoeboxes in a rack that was made for specially for them. It has heat tape all through it so that the backs of the shoeboxes can have nice gentle heat. You can keep them together but you need to watch carefully that everyone is eating and no one is getting picked on. Keeping them singularly for the first couple of months ensures that there will be no tail losses from nippy cagemates also

FQA

FQA

I have heard many people say that Hot Rocks are bad but the pet store tells me that I need to buy a Hot Rock. Who do I believe?
Do not use hot rocks to heat your Leopard Geckos's cage. In fact, they do not warm the air enough for most reptiles. Use a combination of undertank heating to gently warm a portion of the substrate with a regular light bulb for heat during the day. Even better are the ceramic elements that screw into a fixture just like a light bulb, but do not give off any light. (Red light bulbs are ok for night time use also as reptiles can't see the red light.) These can be left on all night whereas regular light bulbs must be turned off at night. Leave the heating pad on all night most of the time. I say most of the time because you need to think about the room temperature also. If you live somewhere where the temperature varies significantly (like where I do) you need to make sure that you are not overheating the cage in the summer or underheating it in the winter. The temperature in my living room goes from about 64 in the winter to 85 in the summer. Therefore I turn off one or both of the heating elements during the hottest parts of the summer. (A thermostat would take care of this for you and adjust accordingly.)
My Leopard Gecko is turning white! What is wrong with him? HELP!
It is okay. He/she is just shedding. Babies will shed quite frequently while they are growing as they grow out of their old skin very quickly. You may want to gently mist them with water when this occurs to make shedding easier. They will eat their shed skin so don't be surprised if you come home one day and your previously white gecko is again sporting his/her bright colors yet there is no shed skin in the cage. The only thing you have to do is to make sure that when they are done shedding that all the skin came off between their toes. If it didn't you can wet the gecko and GENTLY try and work it out. Be very careful. you don't want to take the toes off! Don't worry if they don't eat during this time.
Recently, I have noticed that my gecko seems to be turning a lighter color, perhaps almost a slight orange tint. Also, for the past several days, I've noticed his toes are white at the tips. How is it possible we didn't notice him shedding and what do we do about the stuck pieces?
Leopard Geckos will often shed at night while you can't keep an eye on them. To make matters "worse" they will eat the shed so there is no evidence either. To combat bad sheds there should be a "humidity chamber" available at all times for the gecko to hide in. These are the same as an egg laying chamber. You can make one out of any "tupperware type" container. Cut a hole in the side for an entrance, put damp sphagnum moss or vermiculite (from a plant nursery) about an inch or so deep. Leave the cover on to keep the moisture inside and voila, instant humidty chamber just like their native burrows in Pakistan.
How do I tell if my new baby Leopard Gecko is male or female?
Baby Leopard Geckos are nearly impossible to sex. The only way to have a good idea is to know your breeder. You see, the sex of Leopard Geckos is determined by the temperature the eggs were incubated at. Eggs incubated at between 79-84 degrees generally produce females, at between 86-90 degrees males are produced. Eggs incubated at 85 degrees may produce a mixture of male and females. (There can be hot females and cool males that don't reproduce well but that is another story.) If you do not know the breeder you will have to wait until the Leopard Gecko matures a bit to be able to tell. I'm not certain on the exact age at which you can tell but I believe 6 months is a good age to be able to start to tell. (Breeders and experienced herpetologists can generally give a good idea before this time though.) When they mature, male Leopard Geckos get a row of very noticeable pores shaped like a "V" between their legs in front of the vent. If these pores are "invisible" or hardly noticeable you have a female. Males are generally larger and have blockier heads while females are more streamlined in the head area. Click here for a pictorial view of male and female Leopard Geckos.
I bought 2 Leopard Gecko babies and lately they are not getting along. They got along before; what has changed? (Question may be followed by "I also found a bit of blood in the cage" or "One of my Geckos has lost a tail".)
It sounds like you bought 2 male Leopard Geckos. Babies get along fine until they start to mature. Then males will fight and often draw blood. I've heard that they may fight to the death in captivity but have never witnessed it. For this reason I recommend either buying one gecko at a time and waiting until you know the sex before getting another one or buy from a reputable breeder that can sell you 2 sexed females (or 1 male and 1 female). This happened to me only once. I put about 5 babies in one cage temporarily (I thought they were all females) until one day when I noticed a spot of blood in the cage. I picked up each and every one of the now several month old "babies" until I got to 2 males. I seperated them immediately and everything was fine. (I never did figure out who got injured!)
My Leopard Gecko has lost it's tail. What do I do?
This is most often due to rough handling as opposed to cagemates squabbling. Leopard Geckos and African Fat-Tail Geckos store all of their fat in their tails. Once the tail is lost they can no longer store fat (until it grows back) and thus are more prone to starvation. If the gecko lives alone the only thing you need to do is make sure that he/she is fed well and kept warm enough. If the gecko has cagemates it is best to seperate him/her from the others so you can be sure he/she is eating enough and is not getting picked on. The tail will grow back although it will not look as attractive as it once did. It will be more bulbous and more of a solid color. Once it has grown back all the way the lizard is as good as new and may rejoin it's cagemates. (Observe them to make sure there is no fighting. If there is you may have more than one male. See question #4)
Someone told me that my Leopard Gecko needs a UV light. Is this true?
No, Leopard Geckos are nocturnal and rarely see the sun in their native Pakistan. Therefore they don't need uv in captivity. It certainly won't hurt to expose them to it though. If there is a uv light over it's cage make sure the gecko has somewhere to hide where it is nice and dark.
I'm still confused about the lighting. There are too many products to choose from. Help!
OK, there are two types of lighting in the world of herpetology. There is uv lighting which comes in the form of a flourescent tube. This kind gives off UV-A and some UV-B (which synthesizes D3 and speeds the uptake of calcium in all animals) but not much heat to speak of. Many lizards and tortoises need this kind of light because it somewhat duplicates the sun's effects. Leopard Geckos DO NOT need this type of lighting. Leopard Geckos are nocturnal (awake at night) and never bask in the sun in their native homeland. They get their D3 from the gut-loaded insects that you feed them with the occasional dusting of calcium with D3 added. Please see my cricket care document for details on gut-loading. The second type of lighting you will see in the pet store is only used for heating. There are all kinds of fancy screw-in type bulbs out there with fancy names like "Reptile Basking Light" etc. Don't let them fool you, these screw-in type bulbs cannot emit UV of any sort. They are only needed for heating purposes. There is no reason to buy these kinds of lights for $3 or more when a regular old light bulb from the hardware store/department store works equally as well. Depending on the size of the cage you are heating and the temperature of your home you might need anywhere from a 40 watt to a 100 watt bulb. If you need more than that you should probably invest in a Ceramic Heat Element (CHE). Please refer to my heating document for more information.
My Leopard Gecko has stopped eating. What do I do?
Generally speaking, when Leopard Geckos dont eat it is environment related. Either it is too hot or too cool. I don't know what kind of setup you have but I suggest strongly that you go get a decent digital thermometer from Radio Shack. I found one at Target once too. They make little indoor/outdoor thermometers that have a long probe. You turn it to "outside" and put the probe down on the substrate where the lizard hangs out on the hot side and then get a reading on the cool side. It needs to RANGE from 95 on one side to low 70s on the cool side. If it is a small tank this is hard to do. If it is 95 on one side and 85 on the other the animal cannot cool down and will enter a state where they wont eat until it cools down. On the other hand if it is too cool, maybe 80s on one end to 60s on the other they might not eat as they know they cannot digest properly.
My question has to do with this "calcium" issue. This calcium carbonate substrate sand. Is that any good? If I use that, do I still need calcium dusted crickets?
This is a common misconception. The calci-sand or similar substrate is not a substitute for calcium supplementation. For one thing it is NOT digestible like the manufacturer would have you believe. And if you do not supplement with calcium dusted crickets the gecko WILL eat the sand and could become impacted. For another thing calcium sand is extremely expensive and not worth the money in my opinion. If you want to use sand I recommend the tan colored playsand from the Depot type of stores. Generally it is about $3 for 50 lbs. and does the job just as well. As an aside, the colored calcium sand can turn your geckos funny colors.

A care sheet

Leopard Gecko Care Sheet

Make sure a shallow dish with water is available at all times. Feeding consists of a main diet of crickets coated with a vitamin and calcium supplement. Some of the best supplements on the market are Rep-Cal (calcium and vitamin D) and Nekton-Rep (vitamin). At feeding time, use Rep-Cal as a major component for vitamin and mineral supplementation. Two to three times a month use Nekton-Rep as an additional vitamin supplement - shaking this mixture back and forth to coat the crickets before feeding. Crickets may be found at your local pet store but are about $1.30/dozen. I would suggest ordering your crickets from a supplier (such as Fluker Farms 1-800-735-8537). You can order from this supplier at a cost of $13.50/1,000. The crickets may be kept in a tall trash can with a screen top and fed baby chicken starter mash as a diet. Water should also be made available by an inverted water dish, also available from most suppliers at a cost of $5.00. The crickets have a life span of about six to eight weeks so its best not to order anymore than you will use in two to three weeks.
Gecko hatchlings should be fed 1/2 inch crickets and adults should be fed 3/4 inch crickets. Mealworms may be fed once a month. Occasionally you may want to feed little pinks (newborn mice) to improve the health of your lizard. Feeding should take place three to four times a week. I found that feeding every other day works best for me. In time you will get to know your animal and learn how much to feed at each feeding time. An adult will usually eat between five to seven crickets at one feeding..

Daytime temperature should be around 85 degrees F and may cool to 75 degrees F at night. The daytime temperature may be achieved with a spotlight, such as a fifty watt grow bulb. Make sure it is not possible for your animal to come into contact with the bulb as this will cause burns. A small part of the substrate should be heated from 85-88 degrees F. You may heat the substrate using heat strips or a heating pad made specifically for reptile cages, which are available at most pet stores. You want to purchase these heat strips or pads to place under the tank so they do not come into direct contact with your animal. Do not use heat rocks as these can get to hot and may burn your animal. Remember these lizards are ectothermic (require heat from outside sources).

A breeding group may consist of one male and three to four females. Never house males together as they are very territorial and will fight. Mating for the African Fat Tails usually takes place in November and December with the first eggs being laid in late December. Mating for the Leopard Geckos can occur in January or February with the first eggs being laid in February. Eggs are usually laid in clutches (which consist of two eggs). A clutch is then laid every ten to fifteen days afterwards. Each female can lay between three to thirteen clutches in a season, depending on their health and genetic makeup.

Keep a closed plastic container inside the cage with an opening large enough for the geckos to go in and out. This plastic container will act as a hide box as well as an egg laying site for the females. Keep about two-three inches of coarse vermiculite (commonly found at garden stores) inside the container. Mist the inside of the container occasionally to keep the vermiculite damp but not wet. The eggs can become damaged by to much moisture or by becoming to dry. The female will lay her eggs inside the plastic container.
The eggs will be soft shelled and can be removed for incubation. Place the eggs inside a plastic container with dampened vermiculite and cover the container with a lid and place it into the incubator. Check the container every few days to make sure the vermiculite maintains moisture and to let fresh air into the container. Make sure you check the containers often when its close to hatching time and remove hatchlings as soon as they have hatched.

The sex of the hatchlings is determined by what temperature the eggs are incubated at. To produce females the eggs should be incubated at 80-83 degrees F. To produce mostly males incubate from 85-88 degrees F. The African Fat Tail eggs should not be allowed to incubate below 80 degrees F as this will kill the eggs. Incubators are available at most farm supply stores sold as chicken egg incubators (Hovabator).

The eggs usually hatch out between forty to sixty days, depending on the temperature incubated at. The higher the temperature in the incubator the sooner the eggs will hatch but remember, the higher the temperature in the incubator the more males you will produce.

The hatchlings will not feed until they have had their first shed, which usually takes about five days after hatching.

In sexing these hatchlings I would suggest purchasing a 30X illuminated hand held microscope (found at most Radio Shack stores). The cost is about $10.00. In males just above the cloacal opening you will find an angular row of nine to fourteen pre-anal pores. These pores are prominent in the males and are lacking in the females. As the males grow you will notice they have a widened tailbase in which the hemipenes are housed. Males also tend to have a larger or wider head and tend to be larger than the females. If you do not feel comfortable in sexing your hatchlings it is best to have an experienced person do this for you.

A substrate which I like to use is Canadian sphagnum peat moss. Peat moss makes a good substrate because it is a natural substance which is totally digestible, maintains moisture and naturally absorbs odor. Mix the peat moss with water and rub the two between your hands until the moisture is absorbed by the peat moss. Firmly pack the peat moss in the bottom of the cage and let it dry in the sun or under a heat lamp for a couple of hours until all moisture has evaporated. The peat moss will dry to a hard surface. Normally leopard geckos will defecate in the same area making cleanup easy.

For more Informations

A care sheet

Leopard Gecko Care Sheet

Make sure a shallow dish with water is available at all times. Feeding consists of a main diet of crickets coated with a vitamin and calcium supplement. Some of the best supplements on the market are Rep-Cal (calcium and vitamin D) and Nekton-Rep (vitamin). At feeding time, use Rep-Cal as a major component for vitamin and mineral supplementation. Two to three times a month use Nekton-Rep as an additional vitamin supplement - shaking this mixture back and forth to coat the crickets before feeding. Crickets may be found at your local pet store but are about $1.30/dozen. I would suggest ordering your crickets from a supplier (such as Fluker Farms 1-800-735-8537). You can order from this supplier at a cost of $13.50/1,000. The crickets may be kept in a tall trash can with a screen top and fed baby chicken starter mash as a diet. Water should also be made available by an inverted water dish, also available from most suppliers at a cost of $5.00. The crickets have a life span of about six to eight weeks so its best not to order anymore than you will use in two to three weeks.
Gecko hatchlings should be fed 1/2 inch crickets and adults should be fed 3/4 inch crickets. Mealworms may be fed once a month. Occasionally you may want to feed little pinks (newborn mice) to improve the health of your lizard. Feeding should take place three to four times a week. I found that feeding every other day works best for me. In time you will get to know your animal and learn how much to feed at each feeding time. An adult will usually eat between five to seven crickets at one feeding..

Daytime temperature should be around 85 degrees F and may cool to 75 degrees F at night. The daytime temperature may be achieved with a spotlight, such as a fifty watt grow bulb. Make sure it is not possible for your animal to come into contact with the bulb as this will cause burns. A small part of the substrate should be heated from 85-88 degrees F. You may heat the substrate using heat strips or a heating pad made specifically for reptile cages, which are available at most pet stores. You want to purchase these heat strips or pads to place under the tank so they do not come into direct contact with your animal. Do not use heat rocks as these can get to hot and may burn your animal. Remember these lizards are ectothermic (require heat from outside sources).

A breeding group may consist of one male and three to four females. Never house males together as they are very territorial and will fight. Mating for the African Fat Tails usually takes place in November and December with the first eggs being laid in late December. Mating for the Leopard Geckos can occur in January or February with the first eggs being laid in February. Eggs are usually laid in clutches (which consist of two eggs). A clutch is then laid every ten to fifteen days afterwards. Each female can lay between three to thirteen clutches in a season, depending on their health and genetic makeup.

Keep a closed plastic container inside the cage with an opening large enough for the geckos to go in and out. This plastic container will act as a hide box as well as an egg laying site for the females. Keep about two-three inches of coarse vermiculite (commonly found at garden stores) inside the container. Mist the inside of the container occasionally to keep the vermiculite damp but not wet. The eggs can become damaged by to much moisture or by becoming to dry. The female will lay her eggs inside the plastic container.
The eggs will be soft shelled and can be removed for incubation. Place the eggs inside a plastic container with dampened vermiculite and cover the container with a lid and place it into the incubator. Check the container every few days to make sure the vermiculite maintains moisture and to let fresh air into the container. Make sure you check the containers often when its close to hatching time and remove hatchlings as soon as they have hatched.

The sex of the hatchlings is determined by what temperature the eggs are incubated at. To produce females the eggs should be incubated at 80-83 degrees F. To produce mostly males incubate from 85-88 degrees F. The African Fat Tail eggs should not be allowed to incubate below 80 degrees F as this will kill the eggs. Incubators are available at most farm supply stores sold as chicken egg incubators (Hovabator).

The eggs usually hatch out between forty to sixty days, depending on the temperature incubated at. The higher the temperature in the incubator the sooner the eggs will hatch but remember, the higher the temperature in the incubator the more males you will produce.

The hatchlings will not feed until they have had their first shed, which usually takes about five days after hatching.

In sexing these hatchlings I would suggest purchasing a 30X illuminated hand held microscope (found at most Radio Shack stores). The cost is about $10.00. In males just above the cloacal opening you will find an angular row of nine to fourteen pre-anal pores. These pores are prominent in the males and are lacking in the females. As the males grow you will notice they have a widened tailbase in which the hemipenes are housed. Males also tend to have a larger or wider head and tend to be larger than the females. If you do not feel comfortable in sexing your hatchlings it is best to have an experienced person do this for you.

A substrate which I like to use is Canadian sphagnum peat moss. Peat moss makes a good substrate because it is a natural substance which is totally digestible, maintains moisture and naturally absorbs odor. Mix the peat moss with water and rub the two between your hands until the moisture is absorbed by the peat moss. Firmly pack the peat moss in the bottom of the cage and let it dry in the sun or under a heat lamp for a couple of hours until all moisture has evaporated. The peat moss will dry to a hard surface. Normally leopard geckos will defecate in the same area making cleanup easy.

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Tuesday, February 08, 2005

FQA

Q: Do Leopard geckos make good pets?
A:
Yes! In my 25 plus years of experience with lizards, I have not seen a better beginner herp (reptile or amphibian) than the leopard gecko. They have gentle dispositions and are easy to care for. They also may live up to 25 years or more (de Vosjoli, 1990). They are also great pets for people who have fur and feather allergies, or people who do not have room or time for cats and dogs.
Q:I have decided to get a Leopard Gecko. What book should I get?
A: The General Care and Maintenance of Leopard Geckos and African Fat-tailed Geckos,
" by Philippe de Vosjoli, 2001 (Revised 2003) published by Advanced Vivarium Systems. This book is very thorough and easy to read. Ideally you should read this book before actually bringing your gecko home. You may buy this inexpensive book right here at coolgecko
Q:Where should I get my Leopard Gecko?
A:From a breeder who offers health guaranteed captive-bred leopard geckos. The breeder should also be able to supply you with a book and/or care sheet with the gecko and you should be completely educated as to the care and set-up of the gecko BEFORE you receive the gecko. If you are using a mail order breeder such as coolgecko, make sure the breeder will guarantee live arrival. It is safe to ship geckos as long as conditions are within certain temperature parameters, which the breeder should be well aware of. For example, check the
coolgecko, Ordering Information here. Do NOT accept anything less!
Q:What kinds are there, and can you breed the different color phases together?
A:
Leopard geckos, Eublepharis macularius are one kind of gecko from the genus Eublepharus (Eye-lid geckos). Other Eublepharines are banded geckos(Coleonyx sp.) found from North to South America, the Japanese insular gecko (Goniurosaurus kurowae) and African fat-tailed geckos Hemitheconyx caudicinctus (de Vosjoli, 1990) . You may breed different leopard gecko color phases together, the results are sometimes very interesting with different colors and patterns emerging (see my photo galleries).
Q:Can I handle Leopard geckos?
A:Yes. How often depends on the gecko's comfort level. If they struggle much, put them back and try again another time. Young leopard geckos generally do not like to be handled until they are about two months old. When acclimating a new leopard gecko, let them taste your finger first, then gradually work towards picking them up. NEVER grab them by the tail. Their tails can come off it they are stressed. The tail will grow back, but it will not look as nice as the original.
Q:How big are leopard geckos?
A:Adult leopard geckos are about 6"-7" in length, including tail. Full size may be attained in about 18 months. An average adult weighs 45-60g and can weigh as much as 100G (de Vosjoli, 1990).
Q:What do Leopard geckos eat?
A:A main dietary staple of crickets and/or mealworms works best. Wax worms should be offered only as a snack food as leopard geckos can become "hooked" on this very high fat food item. Wax worms are best thought of as "twinkies" for geckos! Adult leopard geckos can be offered "superworms," a very large variety of mealworm. Some Adult leopard geckos will eat pinkie mice. Food items should be coated with a vitamin supplement such as the
T-Rex Sandfire Dragon Ranch Leopard Gecko ICB (insect cricket balancer) or RepCal with D3 and Herptivite (use 50/50 mixture). If you find yourself using 500 or more crickets a month, you are going to save money by buying from a cricket farm instead of the local pet shop. Go to Kingsnake.com for suppliers in your area.
Q:What size cricket or mealworm will my Leopard gecko eat?
A:
A good rule of thumb for all geckos is to feed them a food item that is about 90% the size of their head. Food items much smaller than the gecko's head tend to be ignored in favor of larger food items. Hatchling leopards can be fed 2 week old (1/4") crickets, older juveniles and adults can be fed 3 week old (3/4") crickets or larger depending on the size of the gecko. Feed hatchlings 3-5 crickets daily, juveniles and adults at least 5-10 crickets or more 3 times weekly. During warm weather juveniles and adults may be fed more often as the warm weather increases their metabolism. Be sure to remove all uneaten crickets after a few hours as these food items are losing their nutritional value as time goes on and may chew on and stress the geckos.
Q:What kind of terrarium set-up do I need for a Leopard gecko?
A:Terrarium set-up depends on how many leopard geckos you are keeping and how old they are. Horizontally oriented aquariums or equivalent well ventilated terrariums made out of wood and glass or some other combination work best as leopard geckos spend most of their time on the substrate (ground). They do not have adhesive lamellae to walk up the sides of the terrarium, so use a full screen cover only if there are creatures in your home such as cats that may bother the geckos. CAUTION: Do not keep more than one male leopard gecko in a terrarium and only keep similar-sized leopard geckos together.Here are some different scenarios:
1-2 hatchlings: shoebox with holes drilled in sides or 5-10gallon aquarium.
1-2 juveniles: 10 gallon aquarium.
1-2 adults: 15 gallon long aquarium or larger.
You can make your own screen cover by going to the hardware store and getting a heavy gauge hardware cloth. This is much sturdier and cheaper than buying expensive terrarium covers that usually warp from putting heat lamps on top. Remember to put duct tape around any sharp edges so you won't get cut from touching them. Cut a hole so you can put your arm through the terrarium and you are finished! While you are at the hardward store pick up a reflector lamp for a heat source.
Q:How do I heat the Leopard gecko's terrarium?
A:
I suggest using a reflector lamp place on top of your screen cover, set to one side of your terrarium to create a "thermal gradient," that is, a cool to warm temperature from one side to the other. This way, your leopard gecko can choose to be where it is most comfortable. The warm side should be 84-88F (de Vosjoli, 1990). Incandescent light bulbs work fine as a heat source, I suggest you buy a few different wattages for different times of the year when seasonal temperatures change. You may set the reflector lamp on a timer so it goes on with sunrise and off with sunset.
Q:What do I put inside the Leopard gecko's terrarium?
A:For substrate (ground material), I recommend indoor/outdoor carpet or newspaper. If you are an experienced leopard gecko keeper, sand is OK if you use fine play sand or something similar. I do not recommend sand as a substrate for new leopard gecko keepers because new hobbyists may not recognize the signs of sand impaction (gecko eating substrate) which can be fatal. Sand impaction may occur as a result of inadequate calcium supplementation or use of coarse sand (de Vosjoli, 1990). While new hobbyists are perfecting their husbandry regimen they may make mistakes in supplementation and not realize a serious problem like sand impaction is occurring. I suggest keeping the set-up simple while in the learning stages. Hiding places are a necessary ingredient in any terrarium. There should be hiding places in both the cool and warm parts of the terrarium. Rocks and cholla cactus big enough for the gecko to crawl through are also desirable, as are succulent plants (real or fake!). Include a margarine tub with a leopard gecko-sized hole in the top to help the geckos with shedding. Fill the margarine tub with about 2" of moist vermiculite and the leopard geckos will go in there to shed and lay their eggs. My beginner leopard gecko kit contains many of the items you will need to complete your set-up (hidebox, water dish, vitamins, leopard gecko book), see my online store.
Q:When can I breed my Leopard geckos?
A:
At approximately nine months of age if females are at breeding weight of 30-35g (de Vosjoli, 1990). Males may breed as soon as seven months of age. CAUTION: breeding a female that is too young and/or underweight may result in premature death! It is best to hold back and even isolate underweight adult females to maximize their size and be sure of their health before breeding.
Q:My Leopard gecko is not eating. What do I do?
A:
Many circumstances can lead to decreased appetite in leopard geckos. It is sometimes very stressful to new owners when their previously very hungry juveniles slow down in appetite as they approach adult size and weight. This is normal. Cut back feeding times per week and the gecko should eat within a week or so. Occasionally geckos like a different food item for variety's sake and may stop eating for that reason. How would you like it if you got the same thing for dinner every night! Improper temperatures in the terrarium (too hot, too cool) may also result in lack of appetite. Sometimes leopard geckos may fight and that too may be the problem. If your gecko at any age has not eaten in two weeks and appears to be losing weight (pelvic bones becoming prominent, tail getting thinner), then a visit to a non-domestic veterinarian is necessary. Check the yellow pages or call your dog/cat veterinarian for a referral.
Q:How do I tell what sex my Leopard gecko is?
A:
Turn your leopard gecko over and look for femoral pores in the area before the vent. Females have reduced femoral pores, mature males have enlarged femoral pores. Males also have hemipenal bulges after the vent, females have a "coke bottle" tail (indented where hemipenes are absent). The leopard gecko is sexable at about three months, but sexing takes experience so keep looking and ask an experienced herper (one who keeps reptiles and or amphibians) for help.


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Monday, February 07, 2005

Stress in The Leopard Geckos

Leopard geckos can become stressed very easily. The most common reasons why a leopard gecko may be stressed could include:
Tapping on the glass of the enclosure.
Malnutrition.
Poor water quality.
Poor diet.
Lack of hiding areas.
Inappropriate housing.
Improper environmental temperatures and/or humidity.
Excessive and unnecessary handling.
Overcrowding.
Subjected to aggression from other cage mate(s).


When a leopard gecko is subjected to constant stress, the immune system can be suppressed. This leaves the gecko more susceptible to a variety of health problems.

Leopard geckos that are stressed may exhibit the following signs/symptoms:

Tend to hide more.
Darkening/dulling of the skin.
Loss of appetite.
Failure to bask.
Lethargy.
Fearful and nervous behaviors.
Change from normal patterns of behavior.


Stress in leopard geckos can very easily result in:

Weight loss and emaciation.
Dehydration.
Malnutrition.
Systemic infection (bacterial, viral, fungal or parasitic).
Slow growth or failure to grow.
Poor muscle tone.
Loss of tail.


The key to dealing with stress and leopard gecko is to prevent these stressful situations from occurring in the first place. Use the common reasons listed above as a guide of how to eliminate/reduce the stress your gecko may be subjected to.

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Egg Laying and Incubation

Leopard and African Fat-Tailed Gecko Breeding, Egg Laying and Incubation

This document does not discuss basic care, only that related to the laying and incubation of eggs. For care information, please see the articles on leopard gecko care and fat-tailed care in the list of lizard care documents.



Feeding And Supplementation

Offer vitamin- and calcium-coated food to females daily or every other day during breeding season. Pink mice are also good food for them.



Laying Eggs

Females may lay several clutches of two eggs each during the breeding season; occasionally, single eggs are laid. Geckos which are very healthy and well cared for may lay as many as 8 times during the year, but fertility decreases with age. Very young geckos are also not as fertile. Older leopard geckos may stop producing any eggs during their last years.

The developing eggs will be seen as bulges on their sides. There are two ways to set up an egg laying place for them. One is to daily mist one area of the substrate so that the medium is slightly damp and check the area a couple times a day for eggs. Another method, and one that is a little safer for the egg, is to construct an egging container made of a plastic container half filled with damp (but not wet) vermiculite or sphagnum moss. Cut a hole in the side of the container just above the level of the damp vermiculite or moss; make it big enough for the gecko to enter and leave. (This is container is a great way to provide an area of humidity at all times for the geckos - it is also called a humidity retreat box. If you are already using one, check it for eggs when you see that your female is gravid.) The egg laying/humidity retreat box is better for the egg as it is less likely to dry out before you find it and it won't get accidentally stepped on by the geckos or nibbled on by prey.

Freshly laid eggs are slightly sticky. If the egg is fertile, it will firm up, becoming rapidly turgid, and will will feel slightly chalky to the touch.

Infertile eggs are thin and soft.



Incubating The Eggs
You need to strike the right balance between a properly humid environment and it being too wet. Combine 6 parts vermiculite with 4 parts water so that the vermiculite is just barely moistened. Without changing how the eggs were laid, place them carefully into the moistened vermiculite, half burying them in the medium. Place a small container of water into the vermiculite too to help keep the humidity up.

A second method is to cut a piece of foam rubber to line a plastic box. Pour enough water into the box so that the foam is saturated and water just covers it. Place small dishes, lined with dampened vermiculite or paper towel, on the wetted foam, and place eggs in the small dishes. Cover the dishes with a layer of dampened paper towels.

Once your egg incubation boxes are prepared, you must incubate them. A Hova-Bator, sold in feed stores for bird eggs, works well. Follow the package directions for setting the incubator up and adjusting the temperature. Any place where you can keep the eggs safe from being jostled or shaken and where you can keep the temperatures constant throughout the incubation period will work. You will need to be able to get into the egg boxes to check the water and add water periodically.

If eggs are incubated at 79 F, the majority of all hatchlings will be female. If incubated at 85F, you will get an almost equal number of males and females. If incubated at 90F, most will be male; at 92F, practically all will be males. Females hatched from these eggs are generally more aggressive than other females, and are generally considered unsuitable for breeding. If you are trying to guarantee a certain number of males, set up two incubation chambers, with one set up at the higher, male-producing temperatures, and the other at one of the lower female-producing temperatures.

Depending upon the temperatures used, eggs will hatch in 6-12 weeks, with the higher temperatures hatching sooner.



Raising The Hatchlings
House them separately in small enclosures (sweater box size is fine) complete with a *shallow* water dish and hide box. Adults and older geckos will intimidate baby geckos who may end up starving. Hatchlings will generally not eat for a week after hatching as they are still living off their yolk. After their first shed, they will they should be fed vitamin and calcium supplemented crickets. Do NOT feed large crickets - smaller ones, even though you have to feed more of them, are more nutritious. Mist several times a week (hatchlings generally need slightly higher humidity than adults) and keep a shallow bowl of water in the enclosure.





Notes On African Fat-tails
Cool down lizards in October/November to 68-72F. Do not feed during this time. Have water available but do not mist the enclosure. One month later, slowly raise their enclosure back to the proper temps. After they are warmed up, offer food; feed females every other day with calcium-supplemented food items, including pink mice.

Females may produce 2-7 clutches of 1-2 eggs during the season. Set up an egg laying box as for the leopards.

Incubate fat-tailed eggs as described above for leopard gecko eggs, but keep at 85F for an even ratio of males and females, with temps ranging between 88-90F for mostly males.

Hatchling fat-tails are more delicate than leopard gecko hatchlings. House separately as above, using paper towels or fine orchid bark or cypress mulch for substrate. Keep them warm and mist the enclosure daily as well as keep their water dish filled. After 3-4 days, they will shed and be ready for feeding. These hatchlings are shyer than leopards, and some may refuse to eat after their shed. These must be carefully hand fed to get them started.

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Sunday, February 06, 2005

Leopard geckos

One of the most successful species in the history of herpetoculture is the leopard gecko (Eublepharis macularius). The leopard gecko is hardy, prolific, and comes in a wide variety of interesting color and pattern morphs. Few species, with perhaps the exception of the corn snake (Elaphe guttata guttata), are bred in such large numbers annually in the United States. Many commercial breeders produce thousands of baby leopard geckos every year, making this species one the most available, and fortunately suitable, species for the beginning and advanced herpetoculturist alike.

Housing

A pair of adult leopard geckos can be comfortably housed in a standard fifteen-gallon aquarium. Many breeders utilize a "harem" system. A harem system is composed of one male and up to ten females. Often, leopard gecko harems are set up in a sweater box sized rack system. A sweater box Rubbermaid container is approximately one foot in width and two feet in length. Rack systems are custom made cages that look a lot like a chest of drawers, the plastic containers pull out from the frame as a drawer pulls out from a cabinet. Running along the back side of rack systems is usually some type of heat tape, regulated by a thermostat to prevent a fire hazard. One male and four females can be comfortable housed in this type of system. If you are planning on having more than a few leopard gecko colonies, this is one of the most cost effective and space saving ways to keep them. As leopard geckos are nocturnal, they require several hiding spots. Hiding spots can be easily and cheaply constructed out of terracotta plant saucers with an access hole knocked in the side, carboard boxes, used margerine tubs, or you can purchase commerically sold plastic hiding spots.

Leopard geckos also require a humidity spot in the enclosure so that they may properly shed their skin. Failure to provide such and area will often result in the loss of digits, as the old skin clings to the animal and may cut off circulation to these extremities. To make a humidity spot, obtain an enclosed Tupperware container that will comfortable house all of the geckos in the enclosure at once (the shoebox size works well for up to four adult geckos). Cut an access hole in the side of the container, and fill the container half way with moist peat, sphagnum moss, or even paper towels. This area must always be kept moist.

The substrate (what is on the bottom of the cage) can be several materials. I personally use paper towels because they are cheap and easy to clean. However, other keepers utilize newspaper, sand, lizard litter (a commercially sold product), fine reptile bark, Astroturf, and peat moss. I personally do not like any loose type of substrate, including sand, as I am concerned about excessive ingestion. Many keepers have however, kept their animals successfully for long periods on these substrates, while others have had problems, I prefer not to risk it. One note, some of the commercially sold reptile substrates claim to be "completely digestible",this is a misleading claim because most of these products contain plant by-products (cellulose,lignin) that very few organisms can actually digest (termites are one that can because they contain symbiotic bacteria that do it for them). Whenever purchasing reptile products on the market, consider this: there is no regulation agency out there making sure their claims are actually true so they can say anything they want without fear of punishment-just take the claims with a grain of salt and do your research first.

Heating

Like most reptiles, leopard geckos generally require some type of supplemental heating. One end of the enclosure should be heated to 86-88 degrees, the other end can range from 70-80 degrees. In aquariums, one of the best ways to provide this thermal gradient is to use and undertank heating pad. Several quality undertank heating pads are on the market. Basically, they are similar to human heating pads but are thin and plastic with one side being adhesive. The adhesive side attaches to the underside of the outside of the aquarium on one end of the cage. I find these heating pads work well because they do not give off light, which can disturb the geckos at night. Other heating options include heat light, but they can be disturbing to the nocturnal behavior of leopard geckos if left on at night (unless a blue or red bulb is used). Providing a correct thermal gradient is essential when keeping leopard geckos, without it, they have problems digesting food and regulating their immune systems.

Feeding

Baby leopard geckos will take crickets that are slightly smaller than their heads, and small mealworms. I feed about 6-8 prey items to my babies and juveniles four to five times a week. The adults will eat adult sized crickets, large mealworms, king mealworms, and occasional pinky mice. Adults receive about 10 food items each four times a week, slightly more during the breeding season. It is important to provide calcium supplementation to prevent nutritional disorders. One method is the "shake and bake", the prey items and put into a plastic bag, some calcium powder is dumped in, and the insects are coated until covered. This method works but is rather labor intensive. Leopard geckos will also consume calcium powder straight from a dish, regulating their own intake, which I find to be the more useful method.

Handling

No reptile likes to be excessively handled, but some species tolerate it better than others. Leopard geckos are generally amenable to limited handling (a few times a week) and rarely bite or evacuate their cloacal contents on their keepers (which is a plus let me tell you-try tegus or most monitors some time). Some people claim that their animals "like to be held", I consider this anthropomorphizing in that I suppose some of these people believe their animals enjoy their company, most likely they are enjoying the heat of your body, nothing else. Reptiles are not social animals and have not evolved the need for contact and companionship we attribute to other animals, specifically mammals (dogs and cats-cats questionable sometimes). Reptiles are not touched by other living organisms except during sex or combat with conspecifics, or during an encounter when they are the intended prey of some other animal. Consequently, reptiles most likely view large mammals coming towards them and grasping them (us) as predators, which as you can imagine, is probably stressful. Over time, some of the more intelligent reptiles, or reptiles that have evolved without the presence of large, mammalian predators, can become accustomed to limited handling, but I seriously doubt they ever like or need it. This view is based on my graduate education in biological and ecological principles.

Breeding

Leopard geckos are very easy to breed. Obviously the first important factor is to have a male and female leopard gecko. Male leopard geckos are distinguished from females by the presence of large, prefemoral pores right before the vent. While females also have these pores, they are much less pronounced. Male leopard geckos also have a distinguishable bulge just past the vent at the base of the tail where the hemipenes are stored. Males will fight with other males, so it is best to have only one male in a breeding situation. To stimulate breeding, leopard geckos should have a 4-6 week period of reduced temperatures. Two weeks prior to a reduction of temperature, leopard geckos should not be fed in order to allow their digestive tracts to clear, however, water should still be provided. The temperature should be slowly lowered over several days to a low of 60-65 degrees. The geckos should be checked a few times a week during this cool down period for any signs of illness. Any gecko exhibiting signs of illness (puffed out throat pouch, gaping mouth etc..) should be immediately removed from hibernation and warmed slowly over a few days to normal temperatures. If the gecko does not improve over a few days of normal temperatures, it should be taken to a qualified herp veterinarian. After the hibernation period, the geckos should be warmed up over a few days to normal maintenance temperatures and food offered. It is important that the female geckos are fed heavily and of good body weight during this period. A few weeks after they have been warmed up, the geckos will begin breeding.

It is easy to ascertain if a female leopard gecko is carrying eggs. When a gravid female leopard gecko is turned upside down, the developing eggs are visible through the skin just above the vent on both sides of the body. When developing eggs are visible, it is important to include an egg-laying chamber in the enclosure. An egg-laying chamber can be constructed out of a plastic Tupperware container with an access hole cut in the side. The egg-laying chamber should be filled with a moist, loose substrate such as peat moss, vermiculite, or potting soil. The humidity site can often double as the egg-laying site. Female leopard geckos will bury clutches of two eggs each in the substrate at two to three week intervals. If the egg-laying chamber is on top of the heat source, it is important to check the egg-laying chamber often so the eggs do not dry out. After the eggs have been laid, they should be removed and artificially incubated. Leopard geckos are temperature sex dependent, temperatures between 80-86 degrees produces mostly females, temperatures above 88 degrees produces mostly males. At a temperature of 85-88 degrees F, a mix of sexes is produced. Baby leopard geckos can be set up and maintained in a similar manner to the adults, in a smaller cage of course

For more Infoirmatiosn

Leopard Gecko Care

Range
Leopard geckos are found in Iran, Afghanistan, Pakistan, and India.



Selection
When selecting your gecko look for obvious signs of health. The gecko should be alert and if possible try and see the lizard feed. Make sure the gecko is captive bred and not imported. With the massive quantities of geckos being produced by captive breeders each year this shouldn't be a problem.



Appearance
Leopard geckos are among the largest geckos with adults attaining a length of around 8 or 9 inches. Most leopard geckos have a yellow background with brown spots covering the adults. Juvenile geckos have a predominantly striped pattern that fades to the spotted pattern with age. They also have a very obvious outer ear and differ from many geckos in that they have eyelids and lack adhesive lamellae, meaning they can't walk up vertical services.



Housing
An aquarium is a perfect home although many people have success with plastic sweater boxes. Since they are a terrestrial species, a long aquarium is better than a high one. A 20 gallon long aquarium is adequate for 3 or 4 geckos. Make sure that you only have one male per enclosure as males will fight each other. The substrate can be anything from sand to newspaper. Sand creates the most natural setup, and you can buy playground sand from any hardware store. Rocks and logs can make the terrarium more natural looking and they provide your lizards with places to climb and get exercise. A hide box is also recommended for each lizard for use in times or conflict and for sleeping.



Lighting and Temperature
Leopard geckos are a nocturnal species so no form of UV lighting is necessary. A simple spotlight with the appropriate wattage bulb can provide both daytime light and heat. Daytime temperatures should be around 90 and the nighttime temps can go down in the low 70s. When I say 90 degrees I mean this should be the temperature directly under the spotlight. This will allow the rest of the cage to remain from anywhere to the 80's to room temperature. I feel that it's best to provide any reptile with a temperature gradient and let them regulate their temperature. I have problems with undertank heating pads and hot rocks as they don't raise the ambient air temperature in the tank and their surfaces often produce extremely high temperatures.



Feeding and Watering
Leopard geckos are relatively easy to feed because they will thrive on insects. A staple of crickets along with occasional waxworms and mealworms make a good diet. Adult geckos can also be fed an occasional pinkie mouse. Juveniles can be feed every day and adults every other day. Supplementation is a must for leopard geckos. Two supplements should be used: one that is just calcium/D3 and another that is a reptile multivitamin. Juveniles should be supplemented at every feeding and adults at every other feeding. Gravid females should also be supplemented at every feeding to make up for the large nutritional depletion caused by egg laying. Insects can be coated with these supplements and it's always a good idea to feed the insects a high quality diet so as to "gut-load" them and increase their nutritional value. If your geckos don't mind being handled it may be a good idea to feed them in a separate container. This reduces the chance of impaction from ingesting the substrate in the aquarium and allows for you to monitor how much each gecko is eating.

A shallow water dish should be provided at all times and changed daily to stop bacteria and fungus growth. Allowing leopard geckos access to a moist area is a good idea that aids in shedding. Even though they come from arid climates their burrows tend to have moderate humidity. People can supply this humidity by moistening the area under their hide boxes. Make sure that the overall cage isn't wet or overly humid.



Breeding
Leopard geckos are relatively easy to breed. One male will mate with several females so people tend to keep them in groups of one male to 3 or 4 females. Pregnant females can usually be detected because of a bump on each side of her abdomen. If provided with a laying box females will tend to use it. Something like a cool whip tub with a hole cut in the side that is filled with moist moss or vermiculite will provide an attractive place for the females. Females will usually produce multiple clutches of eggs during breeding season. The eggs should be removed from the egg laying box and incubated in vermiculite with a 1:1 ratio of water to vermiculite by weight. The plastic shoebox inside of a ten gallon aquarium makes an adequate incubator. If incubated at 85 degrees they should hatch in around two months. A higher incubation temperature will produce more females although de Vosjoli mentions that this may result in overly aggressive females. The newborn geckos will not eat until after their first shed (usually after about a week). they can then be started on appropriately sized insects. It's also best to house them separate, such as in plastic shoeboxes.



Price
With so much captive breeding going on the price of leopard geckos has decreased dramatically. In pet stores they still usually cost between $60 and $70, at least they do in Maine at the moment. They can be purchased much cheaper directly from breeders or at reptile expos. It's not uncommon to see them for $20-25 for one.

Sexing Leopard Geckos
There is little sexual dimorphism between males and females. In general, males are more heavy-bodied than females, with broader heads and thicker necks. The best way to sex them is to look at the ventral side. Males have a V-shaped row of pre-anal pores which exude a waxy substance. Hemipenal bulges can be seen at the base of the tail of sexually mature males. Females have pre-anal "pits" - pores which are not filled nor exuding the waxy plugs. Juveniles can be sexed as early as one month of age with some degree of reliability - if you use a 10X magnifying glass. (page 4)



Temperature-Dependent Sex Determination in Leopard Geckos
Recent studies have confirmed that the sex of leopard geckos is temperature determined. If the eggs are incubated at a temperature of 79F, virtually all of the offspring will be female. At a temperature of 85F, one can expect more or less equal ratios of males and females. At 90F, the great majority of the hatchlings will be males. At 92F, the hatchlings are virtually all males. Furthermore, research has shown that females that have hatched from eggs incubated at high temperatures, called "hot females", will be unusually aggressive and demonstrate male behavior traits and therefore will be unsuitable for breeding. Herpetoculturists, depending on their goals, will have to determine the preferred incubation temperature(s) for their purposes. When large-scale breeding for the pet trade is a primary goal, breeding for females is more desirable because the latter can be kept in groups. (page 27)





Male leopard geckos are harem breeders. As such, they should not be kept with less than 3 females. Being territorial and aggressive over breeding rights, two males should not be kept together. While females generally get along with each other and with males, there may be some incompatibility. This may result in outright attacks, or preventing, actively or through intimidation, others from free access to food, sleeping, basking, or other areas in the enclosure. If this occurs, the individuals must be housed in separate enclosures. For more information, see the Zulich's leopard gecko article.

for more Informations

LEOPARD GECKO CARE SHEET

For more Informations

LEOPARD GECKOS: Past and Present
(Eublepharis macularius)
Stop! If you have just caught the reptile "bug" or are an advanced hobbyist don't overlook these saurian gems.
The leopard gecko, (Eublepharis macularius), is an ideal pet that takes up little space, has simple food requirements, comes in designer colors and patterns and can withstand the life dealt out by even the most absent-minded of keepers. They are excitable as babies, but harmless, and as adults they become very tame; taking food from your fingers. With a maximum adult size of 7-10" this lizard is easily handled by supervised children. But remember, their tails can breakoff (and be regrown), so make sure you never pick them up or grab them by that fleshy tail.

For decades this lizard was the only species being bred in captivity generation-after- generation. It has a fantastic tract record and is probably the most widely kept pet lizard next to the sometimes troublesome green iguana, (Iguana iguana). Since 1992 serious breeders have developed striped, high yellow, "jungle", "ghost", and "leucistic" forms from the original wild-caught imports, which originate in Pakistan and India.

Being a terrestrial type of gecko makes keeping them at home a snap. They are easily kept (our caging system) in a glass or plastic cage that offers 10" x 10" of floor space for each gecko housed and that is at least 12" high. Now that you have a cage in mind, here's your gecko recipe for success:

Use paper toweling or newspaper for the cage bottom. You can see when it is soiled and the cost is low.
Never use fine sand as a substrate since geckos up to 5" in length may eat the sand and become impacted.
Always provide water in a shallow lid or bowl that won't spill.
Use a gallon jar lid or shallow plant dish to serve as a food bowl. It's nice if the insects you are using as feed don't escape from this bowl..
Use a 6" wide plastic container for a hide box. Fill the container with moist potting soil and cut a 1 1/2" diameter hole in the lid or side to serve as an entrance for your pet.
Mist the hide box soil daily. This aids in skin shedding, which they eat.
Provide a screen top for your cage; especially if you have young children or cats.
Keep the gecko cage off the floor and create a temperature of 82-88 F for the daytime. The night temperature can go as low as 64 F with no ill effects. Heat can be gained from commercially available reptile heat tapes, hot rocks or a 40-watt light bulb placed over to screen cage top to reach the needed daytime high temperature. Twelve hours of light is fine.
Feed four live food items daily per gecko.
Never let direct sunlight strike your cage, since it will overheat quickly, like a closed automobile standing in open sun, and kill your pet.
Never have more than one male gecko per cage. Adult males of all types of lizards will fight each other, and sometimes to the death, if they come into contact. A male will vibrate its tail rapidly when it sees another gecko. If the other gecko in turn vibrates its tail in the same fashion then each of them knows that contact has been made with another male and a fight will occur. If, however, a male signals his presence via the tail shaking and the other gecko does not respond in like fashion, then the male knows that the gecko near him is in fact a female. This behavior is one means of determining their sex.
Sexing your gecko is not very difficult. Male geckos are larger, heavier in the neck region, have a line of small pores on their belly between their hindlegs which are just in front of the anal opening or vent and they exhibit two swellings at their tail base and just past the vent. Females lack the large size, in general, and the pre-anal pores and post-anal swellings are missing. Sex can't be easily seen until your gecko reaches 5-6" in total length. Most of the geckos sold in pet shops are females.
You can keep a male with 1 to 10 females all their life. Cage size is the only limiting factor.
Keep a jar lid full of vitamin-mineral powder available in the cage at all times.
These are the main points for daily care, (Herp Care Software), and keeping, but should you wish to deal with the breeding of leopard geckos, there are detailed sources of information at your local pet shop or from the ever-growing Internet. Always keep in mind that your gecko is subject to the temperatures and food you provide. If the temperature is not warm enough the lizard will not feed well and if the feed is not nutritionally balanced their bones will not form properly. This is true for all reptile pets.

In captivity, leopard geckos are best fed mealworms, (Tenebrio molitor), or crickets, which you can order through the mail or purchase at any bait or pet shop. It is important to "power feed" such food items for 24-48 hours prior to giving them to your pet. This is done simply by using a cutdown one-gallon plastic milk jug that is filled with chicken or hog feed. Place a piece of potato or carrot in the jug to provide a source of water for the insects. The idea is to fill the insect with nutritious food itself so that your pet can then fill itself with a balanced diet. Many shop owners do not feed their insects such diets and if you merely feed-out recently purchased insects then your lizard will suffer from poor health within 3-6 weeks. The first signs of such nutritional problems are a soft or shortened lower jaw or bent limbs.

Leopard geckos are sexually mature at 10 months of age and usually lay their first pairs of eggs of the season from January to August. First-time females will sometimes only lay a single egg, but a sure sign that you have done a good job raising your female gecko is seen when two fertile eggs are laid in the box of mosit soil you have been providing. From then on, a clutch will always consist of two eggs unless your female is old or sick. Older females may lay 10-16 eggs per season. A fertile egg feels like a stale marshmellow while an infertile egg looks and feels like a half-filled hotwater bottle.

Eggs are easy to hatch. In fact, you get to have a powerful job, if you wish, since gecko eggs are temperature sex dependent. This means that the sex of the gecko is not determined at fertilization, but is set during the first two weeks in captivity by the high daytime temperature you expose the eggs to. A daytime high that does not exceed 82 F will give you all female offspring, but if you want to make that egg a "male" then you simply place the egg where it will experience 90-92 F as a daytime high during the first two weeks of incubation. (the following line was revised 07-22-03) If you keep "male" eggs at a constant 89-91 F you may have some embryos die from heat stress or if they are exposed to temps over 92 F they may become what we call "hot" or high temperature females, which never reproduce and often bully their cage mates.

Now that you have learned a bit of science you can place your new eggs in a plastic container of moist potting soil, Vermiculite or Perlite. Bury the eggs only 1/2" and place two or three push-pin size airholes in a tight fitting lid. You can get fancy and buy a commercial incubator if you are after a particular sex or you can just place the container of eggs on a high shelf in your reptile room or home where the temperature varies from 74-94 F. (Don't worry if you only have a single female as a pet. She may lay eggs and of course they will be infertile.) Young will emerge on their own in 60-70 days using this method of incubation.

Care of the young is the same as for the adults. They begin taking 1/4" crickets or one-inch mealworms at day 3 of their lives. Plastic shoeboxes are ideal homes for babies. At our reptile ranch we use #2 styrofoam meat trays (available in your grocery store) upside-down for a hide box, a pickle jar lid serves as a place for vitamin-mineral powder and the mealworms and a peanut butter jar lid works perfectly for a water bowl. The young need to be fed live insects daily or they may bite off the tails of their cagemates. Always sort the young to size every two weeks as there will be one or two babies that outgrow everyone else and once this competition begins it is only a matter of time before a small gecko will be eaten by its big brother or sister. If you wish to feed baby mice to an adolescent gecko you can achieve larger size and for a female you will get more eggs laid per season.

Just how long will your pet gecko live? Well, we have had female leopard geckos live 19 years and a friend in Florida had a male, that died recently, that lived a verifiable 27 years! Females are usually able to lay up to the age of 8 years without problem. Again, the key is a proper nutritional foundation; especially during that first year of life.

If you have made a choice to select a leopard gecko as a pet, all you have to do now is find a healthy specimen. A gecko in top condition will have a fat tail - usually 3/4 of the thickness of their neck; they will be alert when awake and the colors should be bright. Kindly, ask your pet shop manager to throw in a live cricket with any gecko you are considering. If the gecko immediately goes after the food item then that is a gecko for you. Avoid lizards that do not readily open their eyes when touched or that have old skin stuck to their toes or are thin.

The normal phase leopard geckos are seasonally available in pet shops while the "designers" must be had directly from the breeder or at some of the larger reptile expositions. Generally, geckos can be bought during the hatching season, from April to October, without any problem. The most difficult months to make a purchase are usually January and February. Shipping through the mail is quite simple and safe.

With all the new color and pattern variations occurring in this species, its future will likely take on the huge assortment of mutations seen in the common goldfish. So far, the first albino has not appeared on the scene, but that is only a matter of time. (this article was written in 1996, but now, since 1999, the first albinos are on the market.) Designer leopard geckos, which are all black or snow white and even all orange are now being developed.

The leopard gecko has become a top reptile choice for anyone at any level of experience. They will never let you down as long as you follow the basic care. The rewards are worth it.

Friday, February 04, 2005

Leopard Gecko Caresheet

Leopard geckos are undoubtedly one of the best reptile pets available today. They are easy to care for, extremely docile, do not require a large cage, easy to breed, and come in a staggering array of color morphs. I have been breeding this species since 1996 and have produced thousands of leopard geckos over the years.
I have designed this detailed care sheet with the beginner reptile keeper in mind, for whom this may be your first reptile pet. If this describes you, congratulations, you have made a great choice! More advanced leopard gecko breeders will also find this information useful because it is always interesting to hear the various ways people take care of their animals and the experiences they have had.


HOUSING

One or two adult leopard geckos can be housed comfortably in a 10-gallon aquarium. Of course they would appreciate a larger cage, so you might want to consider a 20-gallon long or 30-gallon, especially if you may want to expand your collection or consider breeding. A screen top for the aquarium is not necessary to prevent your leopard geckos from escaping because they do not have toe pads that would allow them to climb glass, but you may consider purchasing one for other reasons. I strongly recommend you get a screen top if you have cats or small children, as both could be hazardous to the health of your geckos. A fine-mesh screen top may also be important to you to prevent crickets from escaping the aquarium by climbing the strips of silicone in the corners.



Multiple females can be housed together (if approximately the same size), but sexually mature males are territorial and will fight. A male and multiple females can be housed together without problems, but they should not be introduced until they are of a safe breeding size (45 grams for both males and females). If you purchase a male and female gecko and plan for them to live together in the future, you must raise them to adult size separately. Males grow faster and get larger than females, and a drastic size difference can develop if young males and females are housed together. The larger animal (male) is better able to compete for food, often stealing it away from the smaller animal (female). Additionally, males become sexually mature at a smaller size than females, and will breed females as soon as they are able to reproduce. I have heard of female leopard geckos as small as 25-30 grams laying eggs, but breeding at this size is often too stressful and can cause health problems, in addition to reducing the female's lifetime reproductive potential. To put this in human terms, a 13-year-old girl can have kids, but it is just not a good idea!
If you are raising multiple females together in one cage be mindful that sometimes one female grows faster than others, and as discussed above can out compete smaller cage mates at feeding time. If a drastic size difference does develop you should separate the largest animal from the smaller ones.

SUBSTRATE

Sand is the best substrate for subadult (at least 5 or 6 inches in total length) and adult leopard geckos. I recommend Play Sand (purchased from hardware stores such as Home Depot) because it has been screened and washed. Do not use industrial sand because it contains a lot of dust that can be harmful to your geckos.
Be sure to check the grain size of the play sand before you buy it. Only use extremely fine sand (grain size 0.5 mm or less). In early-mid 2002 I had problems getting the right size sand from the local Home Depot. I am not sure if they changed suppliers or localities for mining sand, but the grain size was three to four times larger (1.5-2 mm) than usual. Since grain size was much larger, I was only able to use it with adult leopards. Recently I have observed grain size to be quite variable between different palettes of sand at Home Depot, all labeled Play Sand (Quikrete brand). The picture below shows three different grain sizes of sand packaged as Quikrete play sand. The pile on the left is extremely fine and suitable for juvenile leopard geckos; the other two piles are much coarser and only suitable for adults. (Click on photo to enlarge)



Young leopards should be kept on paper towels until they are 5-6 inches long. Leopard geckos are very active feeders, and usually end up ingesting some of the substrate in the process of catching a cricket. Young leopard geckos have narrower digestive systems than adults, and it is easier for their system to become blocked if they consume sand.
I have talked to other leopard gecko breeders who have said they raise their babies on sand with no impaction problems. Sand is a lot easier to "spot clean" than paper towels, so I decided to experiment raising some of my babies on sand. I put two hatchlings on sand, and they appeared fine for two weeks. One day I opened their cage and one of the babies didn't look happy and was acting very lethargic. I picked her up and her entire belly felt very hard with all the sand she had ingested. The other baby had also ingested a considerable amount of sand, but not as much as the lethargic gecko. Both geckos were able to pass the sand in their digestive systems, but the heavily impacted gecko required numerous doses of mineral oil down its throat and up the other end. Moral of the story, just to be safe don't use sand until they are 5-6 inches!

HEATING

All reptiles require a temperature gradient that will allow them to select the temperature that best suits their needs at that moment. Sometimes your leopard geckos will want to heat up, other times they will want to be cooler. The best way to heat your gecko enclosure is with an under-the-tank heater. I recommend the Zoo Med Repti Therm U.T.H. These come in various sizes; choose the one appropriate for the size of aquarium you are using. The heat pad should be placed all the way on one side of the tank, creating a thermal gradient. You can peel the back of heat pad and stick it directly onto the aquarium, but once you stick it to the tank it cannot be removed (if the tank breaks in the future or you decide to use it on a different cage). I have found it works equally well to place a piece of wood or book under the tank of a proper thickness that it will push the heat pad directly against the glass. Heat tape is another alternative and it works equally well for heating leopard gecko enclosures.



You should have a thermometer available to check the temperature gradient of the enclosure. I do not recommend you purchase a fancy reptile thermometer that sticks to the side of the tank, as these are more expensive than what you need and will only give you the temperature of the air inside the tank. It is more important to know the surface temperature of the areas where the gecko actually resides. I recommend the stainless steel aquarium thermometers that you should be able to find in most pet stores.

A thermometer of this type will allow you to take the temperature of the sand surface at various places within your gecko's cage, most importantly the hot spot above the under-the-tank-heater. You should know these temperatures and check them at least every two weeks. The warm side of the cage should be at 90° F. If you find the warm side of the cage is hotter than 90° (which is often the case with the Repti Therm U.T.H.) you can decrease the temperature by using a lamp dimmer (Lutron Lamp Dimmer, available at Home Depot). I recommend using the type that allows you to just plug in, rather than the type that requires you to cut the cord for the under tank heater.
Leopard geckos are typically not active during the day and do not require a basking (heat) light or any UV bulbs. They prefer to remain in a dark hiding place during the day, and bright lights constantly shining in their eyes can stress them out. I have seen instances where people who have used basking lights on their leopard geckos have caused them to become stressed to a point where they stopped eating and the geckos eventually died. Red bulbs are better because red light is invisible to leopard geckos, but you should be able to meet the heating requirements of your leopard gecko with an under-the-tank heater alone.
Hot rocks or heat stones are another alternative for heating that you will commonly see for sale at pet stores, but I do not recommend using them with leopard geckos (or any other reptiles). These are ceramic rocks with a cord coming out of it (leading to central heating element). The hot rock does not allow you to control the temperature of the stone; it just heats to whatever temperature was set by the manufacturer. When I was younger I used heat stones for years with iguanas and never had any major problems. I have heard horror stories and have seen pictures of reptiles that have been burned by hot rocks that have malfunctioned or ran too hot. Again, you should be able to provide the necessary heat for your leopard geckos with an under-the-tank-heater alone.

SHELTER

Leopard geckos are nocturnal, and in the wild they remain hidden under rocks or other debris during the day. For these reasons, they appreciate some sort of shelter to hide in during the day. The shelter can consist of may things: paper towel roll, small cardboard boxes (bottom third of a cracker or cereal box), small plastic cottage cheese or margarine containers, or the white deli cup you brought your gecko home in (if you bought your gecko at a reptile show). Each of these shelters should have a hole cut on the side large enough for the gecko to enter. It is good to have several shelters in your cage, one on the warm side, one on the cool side. There are a lot of choices available if you want to get a fancier shelter for your gecko. Many different shelters are available at you local pet store or reptile show including ceramic caves, half rounds of wood, or you can fashion your own hiding place out of loose rocks attached together with silicone caulk (used for constructing aquariums). If you do make a rock cave with loose rocks, be very sure that it is sturdy and will not collapse and crush your gecko.





SHEDDING AND MOIST SHELTER

Leopard geckos shed their skin like all reptiles and amphibians, and leopards shed their entire skin all at once. Frequency of shedding varies, depending on the age and growth rate of the gecko. Babies shed much more often than adults. You will know when your gecko is preparing to shed because its colors will get duller, and then it will turn whitish immediately before the shed. Leopards usually eat their entire skin in the process of shedding. This strategy is important for wild leopard geckos for two reasons. First, they expended the energy to make the skin; they aren't just going to let it go to waste! Second, bits of lizard skin in an area may tip off predators that they are in a good place to hunt tasty lizards.
Usually the gecko is able to pull the shed off easily, but sometimes they have problems, especially if they do not have the proper humidity during shedding. You should always check your gecko after it has shed to make sure it was able to peel all the skin off. Leopard geckos often have problems with removing skin from their toes. If shed skin is not removed promptly from a toe it will become constricted, and as the lizard grows the toe will become constricted to the point where the shed skin can cut off blood flow to the toe. If this is not caught in time the toe can die and fall off. This is not a big problem, as it usually heals quickly, but I think they are happier with all their toes!



A moist shelter should be provided so your gecko can have access to high humidity when it is shedding. I have found leopards usually prefer the moist hiding place, even when they are not in the process of shedding. The moist shelter can consist of a small plastic container. A plastic cottage cheese container with a hole cut in the side works well, or you could use a Rubbermaid sandwich container with a hole cut in the top. I typically use cypress mulch (Zoo Med Forest Floor Bedding) as the bedding in the moist shelter, but peat moss or vermiculite works equally well. You want to keep the cypress mulch or peat moist, but not sopping wet. Below is an example of a 1.8-quart Rubbermaid container that I use for moist shelters and egg-laying boxes for my adult leopard geckos. This is a group of female Rainwater albino hets and a Rainwater albino male. Note: container top was moved for this photo.



If you do find your gecko has not been able to remove some skin after shedding, you need to lend a helping hand. Place the gecko in a small plastic container lined with warm, wet paper towels. Put a top on the container and let the gecko sit for 30 minutes. High humidity will develop in the container and this should loosen the skin enough to allow you to remove it easily with a pair of tweezers. If the skin has not loosened enough for it to be removed easily, leave the gecko in the container for another 30 minutes.

WATER

Leopard geckos come from a dry environment, but require some humidity and water. Water should be made available two or three times a week. I use plastic bottle tops from Gatorade, large Aquafina, and 1-liter Mountain Dew bottles for water dishes. I typically use the shorter Gatorade tops for smaller leopards, and the larger Aquafina and Mountain Dew tops for larger leopards. Although these may not be the most decorative water dishes, they are the perfect size for leopards, free, and easily replaceable. Larger, more decorative water dishes can be used, but they usually become dirty very quickly (harboring bacteria) and require a rock in the center to prevent crickets from drowning. Plastic bottle tops have the benefit that they usually dry out or are tipped over in a day or two, preventing bacteria from multiplying in the water dish. I recommend placing the water dish on the cool side of the cage; otherwise the water will evaporate too quickly.
Young leopard geckos should be misted occasionally. I recommend misting the entire cage once or twice a week, especially if you notice your gecko is preparing to shed its skin. The misted water should have all evaporated within 24 hours.

FOOD

Leopard geckos will eat many kinds of live prey items including crickets, mealworms, superworms, wax worms, and even pink mice (a.k.a. pinkies - baby mice only a few days old).
Crickets vs. Mealworms
I have raised many generations of leopard geckos on a primary diet of crickets, but made the switch to mealworms in 2003. I have been using regular mealworms (not giant mealworms), large size for subadults and adults, medium size for babies). I resisted this switch for quite a while, but am now a firm beliver in mealworms. I have been very impressed with the growth and weight gains I have seen since I switched to mealworms.
The ultimate decision for what to feed your geckos is yours. I will discuss the pros and cons of crickets and mealworms below:
Crickets:
Pros:
1. More active so more stimulating to the geckos.2. Crickets are nutritionally superior to mealworms, containing more moisture, protein, calcium, and vitamin C than mealworms (information from Grubco).3. Exoskeleton is thinner, so may be easier to digest.
Cons:
1 . If you buy them in bulk you need to worry about providing food and water for your crickets or they will die.2 . Uneaten crickets will annoy your gecko, crawling on it or chewing on its toes or tail.3 . Hungry crickets will often eat gecko feces in the cage, ingesting any parasite eggs or oocysts (stage in the life cycle of coccidia and crytosporidium that is shed in feces; basically an egg). These crickets will now carry these parasite eggs in their stomach, and when the gecko eats these crickets those eggs will hatch inside the gecko, increasing the parasite load in your gecko (see page on lizard health for more about this). 4 . The number of crickets in the cage needs to be limited for the reasons listed above. (#2 and #3), so you need to feed you gecko at least twice a week, if not more often.5 . They stink!6 . They get loose.7. They chirp.
Mealworms:
Pros:
1. They aren't very active and can't climb or jump, so no escapees.2. If you buy them in bulk you can refrigerate them for weeks until you are ready to use them, so no worries about providing food and water.3. They are contained in a dish until they are eaten, so they are not annoying the gecko or eating gecko poop and reinfecting the gecko with any parasite eggs.4. Since they are not annoying your gecko you can leave a constant supply in the cage, which may allow you to only feed once a week if the food dish is large enough.5. No chirping, yeah!
Cons:
1. You need to provide a feeding dish for the mealworms, so something else to clean.2. The exoskeleton may be more difficult to digest.3. Crickets are nutritionally better.4. Mealworms will bury into the sand if they escape from the feeding dish.5. Mealworms are less active than crickets, so less stimulating as food items.
I use plant saucers for my mealworm dishes, 6 inch size for larger cages, 4 inch size for smaller cages.
It is important to gut load your mealworms before you feed them to the geckos. I allow the mealworms to feed on carrots for at least 24 hours before I feed them out. I also put a small amount of the Cricket Gut Load manufactured by T-Rex in the mealworm dishes. This product is 10% calcium, and it also contains other good stuff like alfalfa meal, bee pollen, spirulina algae, haemotococcus algae, kelp meal, and marigold extract. The mealworms crawl around in the gut load and eat it, and the gecko will consume some in the process of catching the mealworms. A major benefit of providing the gut load in the dish with the mealworms is that they will always be gut loaded, even days after you put them in the dish.
I also recommend providing a small piece of carrot in the mealworm dish, which will provide a moist food for the mealworms. I have found providing the carrot makes the mealworms more active in the dish, crawling around and feeding, which makes them more stimulating to the geckos.
Switching my geckos from crickets to mealworms was not as difficult as I had expected. I found the young leopard geckos adapted to eating mealworms from a dish much faster than adults, but the adults learned eventually when they got really hungry. A piece of carrot in the mealworm dish will help in the process, as it will make the mealworms more active, thus more interesting to you your geckos.
Waxworms and PInkies
Wax worms are very high in fat, and are useful to help a skinny or sick gecko gain weight. They can also be fed as part of the normal diet, but should only be used as an occasional treat rather than a mainstay of the diet. You should think of wax worms as junk food for geckos, or "gecko crack" as I have heard from other breeders!
Many adult leopard geckos will also eat live pinkies. I feed pinkies to my breeding females; both during the breeding season and after the season to give them additional calories to regain weight they lost from laying eggs. I have found that some females will refuse pinkies before they begin breeding, but once they start laying eggs they will eat as many as they can fit in their stomach (usually two or three).
Other Feeding Considerations
It is difficult to feed your leopard gecko too much, but it is possible for a gecko to become obese if fed on a high fat diet (too many wax worms or pinkies). A healthy, well-fed leopard gecko will store fat in its tail and they can utilize this fat during the breeding season or during hibernation. Mealworms can be provided in a shallow dish at all times. Crickets can be offered daily if you want to spoil your gecko, but a minimum of twice a week.
If feeding crickets you should only feed as many crickets as your gecko can eat in 10-15 minutes. Pre-feeding time would be a good time to spot clean your cage, picking out any feces or dead crickets in the cage.
It is important to select the proper prey size for your gecko. Smaller geckos need to be fed smaller prey items than larger geckos. The general rule of thumb for selecting the proper size is the prey item should be no longer than the length of the gecko's head. For hatchling geckos this usually means 3/8-inch crickets (cricket age 2 weeks, maybe 3 weeks old), for juvenile geckos ½-inch crickets (3 weeks old), and subadult geckos can handle smaller adult crickets (male crickets are generally smaller) by the time they are 6 inches long. Note: cricket size varies by sex, but it can also vary greatly depending on your cricket supplier.

VITAMINS

Gut loading is very important! "Gut loading" is defined as filling the gut of prey items with nutritious foods before they are fed to your geckos. Remember the old saying "You are what you eat"; a more nutritious prey item will make for a healthier gecko. I recommend Flukers High Calcium Cricket Diet or T-Rex Cricket Gut Load, and give them pieces of orange or carrot to eat as well. If you are buying one or many dozen crickets from the pet store, put the crickets in a separate container with the cricket gut load and orange slices for at least several hours before you feed them to your geckos. Feed only as many crickets as your gecko can eat at one time, or the crickets will pass the nutritious food and fill their bellies with gecko feces or dead crickets they find in the gecko cage.
See the section on mealworms above for my recommendations on gut loading mealworms.
Vitamins are also very important for your geckos. I (and many, many other breeders) recommend Miner-All vitamin supplement made by Sticky-Tongue Farms. Miner-All comes in two types "I" and "O". "I" is for indoor animals and contains vitamin D3. "O" is for outdoor animals and does not contain vitamin D3. Since leopard geckos are not basking lizards (such as bearded dragons), it is important to use the "I" to provide them with vitamin D3.
The typical method of administering vitamins to your geckos (if feeding crickets) is the "shake and bake" method. Put a small amount of the vitamin supplement in a jar, plastic bag, or other small container, place the crickets in the container, and shake until the crickets are covered with white powder. This should be done immediately before you feed your geckos because the crickets will clean themselves and remove the powder. Juvenile leopard geckos require a lot of calcium and vitamins during the growing process, so food items should be coated with vitamin powder at each feeding. Non-breeding adult geckos do not require as much calcium, so supplementation twice a week is sufficient. Egg-laying females require a lot of calcium; so all prey items should be dusted with vitamin powder.
Some leopard gecko breeders provide a shallow dish (jar lid, Gatorade bottle top, etc.) with a small pile of vitamin supplement to their geckos at all times. I provide dishes of vitamin powder to my breeding groups, but not to juveniles and subadults. I feel gut loading and dusting with vitamin powder is sufficient for juveniles and subadults. Providing a seperate dish of vitamin powder is not necessary if you are feeding mealworms and using the T-Rex Cricket Gut Load in the dish because the geckos will eat this powder if they need additional supplementation.
CAGE MAINTENANCELeopard geckos only require minimal routine cage maintenance. They are fairly clean and usually poop in only one corner of the cage. A sand substrate allows for simple spot cleaning of feces and dead crickets, and this should typically be conducted at least once a week. The sand substrate should be dumped and the entire cage (including water dishes, cage furniture, etc.) washed and sterilized with a mild bleach solution (1 part bleach: 9 parts water) or Nolvasan (diluted to robin's egg blue) at least once every two months. You should be able to order Nolvasan through your vet. If you see many small bits of feces mixed throughout the sand it is definitely time to clean the entire cage.
Paper towels do not allow for easy spot cleaning, and should be replaced entirely once a week. Sterilization of the entire cage is not required each week, but should be done at least every two months.
HIBERNATIONHibernation is a natural part of the yearly cycle for leopard geckos, but it does not appear necessary for pet geckos to hibernate. It is perfectly fine to keep heat on your geckos throughout the winter season, and they should eat, drink, and be active through the winter.
But, maybe you are planning on breeding your geckos or would just like a break and choose to hibernate your geckos. Simply turning off the under tank heater is often enough to hibernate your geckos, as they can be hibernating at 70 degrees Fahrenheit (as low as 65 degrees is fine). During the hibernation period your geckos will eat less, drink less, and be less active. They can remain in hibernation for up to three months without losing much weight because their metabolism has slowed, requiring less energy. You can choose to feed your geckos occasionally, but only feed lightly. If your geckos do not want to eat during this period that is fine, remove uneaten crickets so they do not annoy your geckos.
At least several times during the fall and winter I get emails from concerned leopard gecko keepers who have noticed their geckos are eating less. This is normal, and is the result of the temperature fluctuations in your house from summer to winter. I would not worry as long as the gecko is maintaining a fairly constant weight, normal feeding should resume in the spring.

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