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Crested Gecko

Correlophus ciliatus

Species History

The Crested Gecko has had a relatively recent climb to popularity in the pet industry. The species originates from the islands of New Caledonia, a modern day French territory in the South Pacific Ocean about 800 miles east of Australia. It was discovered in 1866 by French explorers in the region and then thought to have gone extinct in the 1890s.  The species was rediscovered in 1994.

Crested Geckos are arboreal, meaning they spend an extremely high percentage of their time in the thick canopy they inhabit. They are primarily a nocturnal species, and generally sleep through the day. Like many other geckos, they are strong climbers and are impressive jumpers.

In their natural ecosystem, Crested Geckos are omnivorous and feed on many different types of insects and fruits. Their lifespan in the wild is unknown, although in captivity some individuals have been documented living to over 20 years old. Most adults reach a total length of around 8 inches including their tails.  Crested geckos easily lose and do not regrow their tails, giving them the common name, frog butt.  Tail loss does not affect crested geckos and may even be a competitive advantage in the wild.

Care Principles

Enclosure Set-up

You’ll want at least a 20 gallon tank to house your Crested Gecko. When selecting an enclosure, keep in mind that Gecko’s typically need as much vertical space as possible. It is critical that this tank has a locking top with a fine screen. If you plan on housing two geckos in the same enclosure, get at least a 30 gallon tank. Male’s should never be housed together.

Your enclosure should contain the following:

  • A hiding place – there are a wide variety of hide boxes available for reptiles, you’ll want something that is dark and large enough for the gecko to conceal itself
  • Many branches or other climbing structures – your gecko will need things to climb and places to rest 
  • Live plants such as pothos and creeping fig
  • Substrate – We recommend moss or peat, although other natural substrates can be used
  • Ceramic Heating Lamp – Temperature is very important to reptile health
  • Aquarium thermometer – Usually inexpensive, you’ll want to place this thermometer between 1-2 inches from the bottom of the tank above the heating pad
  • Aquarium Humidity gauge
  • Spray Bottle

Temperature and Humidity

Gecko’s, unlike mammals and other endotherms, are unable to self regulate their internal temperature without the help of external heat sources. A temperature gradient is key to allow your gecko to self regulate its temperature as needed. Aim for a temperature gradient of 72-80 degrees. This is most easily accomplished by placing a ceramic heating lamp above the enclosure. The top half of the tank will be the hotter end of the gradient with the lower portion being on the cooler side. 

Crested Geckos require a humidity of right around 70%. Keep a close eye on your humidity gauge in the enclosure and use a spray bottle to mist the inside of the tank as needed. 

Diet and Feeding

A healthy Crested Gecko will usually eat every 2-3 days. When considering feeding frequency, there are a number of factors to consider such as age, time of year, and size of meals. Some sources recommend using supplements and meal replacement products. You can go this direction if you choose, although we cannot recommend a diet other than one that most closely matches their diet in the wild. 

Offer your crested gecko pureed fruits such as raspberries, grapes, melon, bananas and peaches every 2 days. Do not feed your crested gecko citrus fruits. Remove the uneaten food after 24 hours. Then every 3-4 days, offer your crested gecko crickets, dubia roaches, or other various insect varieties such as hornworms and superworms. A balanced diet of fruits and insects is crucial to proper nutrition and health. 

Water is just as if not more important than food. Your gecko should always have a clean water source available in its enclosure. Water should be changed regularly (every couple of days) and should the gecko defecate or otherwise infect its water source, it should be cleaned and replaced as soon as possible. 

If your gecko doesn’t eat its insects right away, leave the insects in the enclosure overnight.  As the species is notcurtal, they actively hunt at night. If they still don’t eat the insects, do not feed them any fruits for a day or two.  This should prompt them to eat the live insects. This technique encourages a more balanced diet. 

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Misc.

Handling

Crested Geckos are generally a calm species when handled correctly, although some individuals will exhibit “nervous” behaviors such as jumping away from the handler. To pick up a gecko, gently slide your hand underneath it and lift it carefully. Allow the animal to move around freely in your hands. Leave your hands partially open and never hold the gecko tightly. Never make sudden movements or jerk the gecko. 

Shedding

Shedding is a normal and healthy process. As their skin becomes worn and too small, a gecko “sheds” the old layer which is replaced by a fresh layer right underneath it. Generally speaking you should not experience many issues with Crested Gecko shedding. If the gecko appears to be having difficulty shedding skin or it is uneven, ensure the enclosure is at the proper humidity. 

Cleaning

Proper enclosure cleaning is key to maintaining your pets health and wellbeing. Whenever your gecko defecates, remove the affected area of substrate immediately. Most often, your gecko will likely defecate on the side glass of its enclosure making clean-up very easy.  Every couple months you should complete a deep clean of the tank. 

During this process, remove the gecko and move it to a separate container. Then remove all substrate from the enclosure and use a reptile safe cleaner to clean the interior of the tank. Rise it thoroughly. You’ll also want to clean any other items (apart from live plants) in the enclosure using the same process. Check out our guide to cleaning for more information on this. 

Common Concerns

If the gecko fails to eat for a number of days in a row or begins to behave abnormally, it may be a sign that the gecko is sick. Like humans, illness can affect reptiles. Commonly a result of a bacteria or parasite infection, your reptile may need the care of a reptile vet professional. Other possible symptoms include a change in fecal/urine matter, fluid excrement near the eyes or mouth, or any visible parasites on the surface of the snake’s skin. If you notice any of the above, it’s best you contact a reptile vet to help you best navigate the situation. 

Have a question on something else?

What’s my home’s humidity level – and why does it matter?

Author: saveonenergy.ca

This energy company writes an article describing the average humidity of homes. The article was not intended for reptile care use, but provides a good benchmark for your likely humidity levels inside your home. 

Behavior of the terrestrial nocturnal lizards Goniurosaurus kuroiwae kuroiwae and Eublepharis macularius (Reptilia: Eublepharidae) in a thigmothermal gradient

Authors: Yehudah Werner, William Mautz, Hiroo Takahashi, Hidetoshi Ota

This paper describes the behavior of leopard geckos when given the freedom to thermoregulate their internal temperature on a wide temperature gradient. Their results provide an estimate average temperature of the leopard gecko. 

Guidelines for Inspection of Companion and Commercial Animal Establishments

Authors: Clifford Warwick, Mike Jessop, Phillip Arena, Anthony Pilny and Catrina Steedman

This source, written by a team of veteran reptile researchers, outlines a guideline and system for establishing the minimum enclosure size for a variety of exotic animals. The authors note that this system is just an estimation. The estimation provided by their system is fairly in line with a number of anecdotal sources/best practices from other care authorities.

Natural history and biology of hobbyist choice leopard gecko

Author: Muhammad Sharif Khan

This source, written by a researcher at a Herpetological Laboratory in the leopard geckos native habitat of Pakistan provides a detailed account of the leopard geckos natural habit and behavior. Due to the political environment that has surrounded the country for many years, we are very grateful for Muhammad’s research.

Conversation and study with Cameron Young

Author: Cameron Young

This source is not a documented research paper. Rather it’s information provided direct from an expert. Cameron is the founder and executive director of The Center For Snake Conservation, and their educational wing My Nature Lab. He and his team have personally cared for thousands of reptiles with impressive effectiveness. They have a wealth of knowledge on the biology and proper care of reptiles. 

Does Loose Substrate Cause Impaction in Bearded Dragons and Other Reptiles?

Author: Mariah Healey

This blog post breaks down the common myth that loose substrate can cause impaction. There are a couple of points to this issue. Impaction is caused by improper care, not the loose substrate we advocate here. 

THERMOREGULATION IN REPTILES, A FACTOR IN EVOLUTION

Author: CHARLES M. BOGERT

This paper describes the thermoregulation of reptiles. By providing a basis and explanation of the adaptation from an evolutionary point of view, we quickly see the importance for captive care. 

Temperature and respiratory function in ectothermic vertebrates

Authors: Glauber S.F. da Silva, Mogens L. Glass, Luiz G.S. Branco

This paper describes the importance of proper thermoregulation in reptiles. It explores the biological processes in vertebrates that are impacted by internal temperature. With this research a strong case is made for the impotence of temperature in proper husbandry. 

Multiple Sources Used

Authors: N/A

We used a multi-source approach to ensure this temperature recommendation was spot on. We consulted My Nature Lab, who cares for hundreds of reptiles, including quite a few leopard geckos. Utlizing their guidelines,  research on their wild habitat, and their ideal temperature, we landed on this gradient as optimal. In theory, a different gradient could be just as successful at enablding proper theormoregulation. It should be well back and based in the research.

Lighting, Temperatures & Humidity Levels

Author: Mariah Healey

This blog style care guide pulls in various research and expert opinions. This page specifically reviews the author’s care guidelines for leopard gecko’s regarding lighting, temperature, and humidity. 

Temperature preference in geckos: Diel variation in juveniles and adults

Author: Yehudah Werner

This paper looks into the temperature preferences of leopard geckos throughout the entire day. They offered the animals a strong temperature gradient enabling the animals complete freedom to move around as they desired. The witnessed behaviors provide insight into the needs of geckos in captivity.

Guidance from My Nature Lab

Author: N/A

My Nature Lab is an educational non-profit that cares for well over 100 reptiles. Their team has more than 50 years of collective experience researching and caring for reptiles.  Through conversations with their animal care team and founder, we’ve learned from the very best. 

Effects of different vitamin D sources on blood biochemistry of bearded dragons (Pogona spp) and Hermann’s tortoises (Testudo hermanni)

Author: Nikoletta Hetényi, Zsolt Lang, Tamás Sátorhelyi, István Hullár

This research paper analyzes the effects of various Vitamin D sources and their effects on bearded dragons and tortoises. While this research is specific to these species, it does provide a well crafted overview of the risks of low Vitamin D in all reptiles.

The nocturnal leopard gecko (Eublepharis macularius) uses UVb radiation for vitamin D3 synthesis

Authors: D.G.A.B. Oonincx, J.J.E. Diehl, M. Kik, F.M. Baines, A.C. Heijboer, W.H. Hendriks, G. Bosch

This research paper analyzes the effects of UVB exposure to Vitamin D3 synthesis in leopard geckos. The results suggest minimal UVB exposure, only 2 hours a day, is sufficient for a significant increase in Vitamin D3 synthesis. The results also suggest dietary Vitamin D3 can be sufficient, with a couple of caveats.

Effects of vitamin D3 supplementation and UVb exposure on the growth and plasma concentration of vitamin D3 metabolites in juvenile bearded dragons (Pogona vitticeps)

Authors: D.G.A.B. Oonincx, Y. Stevens, J.J.G.C. van den Borne, J.P.T.M. van Leeuwen, W.H. Hendriks

This research paper analyzes the effects of different Vitamin D sources in a common pet, the bearded dragon. This source was used however to determine the likelihood that feeder insects can provide adequate Vitamin D strictly from diet absorption. The source is very clear: many common feeder insects are lacking in Vitamin D. 

Insectivorous reptile nutrition and disease (Proceedings)

Author: Ryan S. De Voe, DVM, MSpVM, DACZM, DABVP

This article written by an experienced reptile vet, discusses the basics of insectivorous reptile nutrition, paying particular attention to the role vitamin A and Vitamin D play in a healthy diet. The author notes a handful of challenges in using supplementation to combat malnutrtional disorders. Notably, the varying quality, and possiblity of vitamin and mineral toxicity causes by overuse of supplements. 

Evaluating the Physiologic Effects of Short Duration Ultraviolet B Radiation Exposure in Leopard Geckos (Eublepharis macularius)

Authors: Amelia Gould, DVM, Laure Molitor, MS, DVM, Kelly Rockwell, MZ, DVM, Megan Watson, DVM, MS, Mark A. Mitchell, DVM, MS, PhD, DECZM (Herpetology)

This research study seeks to determine if leopard geckos are able to synthesize Vitamin D with use of UVB like other reptiles. The study results found that leopard geckos exposed to only 2 hours of UVB are able to synthesize a significant amount of Vitamin D without dietary supplementation. The authors additional share some concerns over exposing leopard gecko’s to 12 hours of UVB, especially if the animal does not have access to shelter. 

SOURCE NAME

Explanation of how we used the source. This source provides clear guidance on the importance of diet diversity. It should also include a bit about the source. Mark Mitchell is a well known researcher and has published 200 book chapters.