Keepers Guide

reptile

Crested Gecko

Correlophus ciliatus

Crested geckos have an unusual modern history for a pet species: they were considered possibly extinct until a small population turned up on the island of New Caledonia in 1994, and virtually every crested gecko in the pet trade today descends from that rediscovery. They're arboreal, nocturnal, and — unlike almost every other gecko on this site — don't regenerate a dropped tail, which changes some of the handling calculus compared to leopard or gargoyle geckos.

Lifespan

15-20 years

Size

6-9 inches including tail (many adults lack a tail entirely — see Handling)

Origin

Rainforest canopy of New Caledonia; believed extinct until a 1994 rediscovery expedition

Husbandry

Enclosure size
Minimum 12x12x18in (vertical) for a juvenile, 18x18x24in vertical for an adult; height matters more than floor space for this arboreal species
Source: Association of Reptilian and Amphibian Veterinarians (ARAV) husbandry guidance (checked 2026-03-01)
Temperature gradient
Ambient 72-78°F; this species is notably heat-sensitive and sustained temperatures above 82-85°F cause stress and can be fatal, unlike most basking lizards on this site
Source: Merck Veterinary Manual — Reptile Husbandry (checked 2026-03-01)
Humidity
50-70% ambient with daily misting, allowing the enclosure to dry out somewhat between mistings rather than staying constantly saturated
Source: Merck Veterinary Manual — Reptile Husbandry (checked 2026-03-01)
UVB lighting
Low-level UVB (2-5% T5) is now recommended as current best practice, a shift from older advice that treated this nocturnal species as not needing it at all
Source: UVGuide UK research on crepuscular/nocturnal gecko UVB exposure (checked 2026-03-01)
Diet
Commercial powdered crested gecko diet (mixed with water) as the nutritional staple, offered 3-4x weekly; occasional appropriately-sized live feeder insects as enrichment
Source: ARAV husbandry guidance (checked 2026-03-01)
Supplementation
A complete commercial crested gecko diet already contains calcium and vitamins; additional dusting is only needed if live insects make up a large share of the diet
Source: ARAV husbandry guidance (checked 2026-03-01)
Cohabitation
Solitary is safest; adult males will fight and should never be housed together, and even female pairs can develop resource-guarding stress in a small enclosure
Source: Merck Veterinary Manual — Reptile Husbandry (checked 2026-03-01)
Substrate
Coconut fiber or a bioactive soil mix supporting live climbing plants, which this arboreal species uses constantly
Source: ARAV husbandry guidance (checked 2026-03-01)

Honest disagreement among sources

Whether live feeder insects are necessary given complete commercial diets

Current best practice: A complete powdered crested gecko diet alone is nutritionally sufficient long-term

Noted disagreement: Many keepers still offer live insects regularly, citing feeding enrichment and anecdotal improvements in body condition, even though it isn't strictly required

Handling

Crested geckos are agile jumpers and can move surprisingly fast for their size, so handling low over a soft surface matters more here than with most geckos. Critically, this species does NOT regenerate a dropped tail the way leopard geckos do — once autotomized, it's gone permanently, which is why grabbing at the tail or startling a gecko into a panicked jump is worth avoiding entirely rather than treating as a recoverable mistake.

Setting up the enclosure

Vertical space matters more than floor space for this arboreal species — an 18x18x24in tall enclosure with dense climbing branches and live or silk foliage gives a crested gecko the layered canopy structure it naturally moves through, in contrast to the floor-space priority appropriate for a ground-dwelling gecko like a leopard gecko.

A bioactive setup with live plants and a springtail/isopod cleanup crew is increasingly common for this species and holds humidity more consistently than a bare-bottom enclosure with manual misting alone, indirectly reducing the stuck-shed risk covered on this site's problem page for this species.

Why the lighting and heating numbers matter

This species is unusually heat-sensitive compared to most lizards on this site — sustained temperatures above 82-85°F cause stress and can be fatal, which makes ambient room temperature and enclosure placement (away from direct sun or a warm window) a bigger practical concern than for most basking reptiles.

Low-level UVB (2-5% T5) is now recommended as current best practice, a genuine shift from older advice that treated this nocturnal species as not needing UVB at all — worth adding even to an established enclosure that's run without it.

A digital thermometer positioned at gecko-resting height, not just near the top of the enclosure where warmer air tends to collect, gives a far more accurate read on the temperature this heat-sensitive species is actually experiencing day to day.

A cooling plan for unexpectedly hot weather (increased ventilation, moving the enclosure away from direct sun, a fan circulating room air) is worth having ready in advance given how quickly this species can be affected by heat that would be entirely unremarkable for a desert-adapted reptile.

A humidity gradient — one area of the enclosure noticeably damper than the rest, achieved through localized misting or a moisture-retentive substrate patch — supports natural behavior better than a single uniform humidity level applied everywhere.

This species visibly changes color based on mood, temperature, and activity level — a phenomenon keepers call 'firing up,' where colors brighten noticeably during active periods (typically after lights-out) and dull again when the gecko is resting or stressed. Learning an individual gecko's normal fired-up and dulled states gives a useful, non-invasive way to gauge general wellbeing day to day.

Feeding in practice

Commercial powdered crested gecko diet (CGD), mixed fresh and offered 3-4 times weekly, is the nutritional staple — a portion left out for several days dries out and becomes considerably less palatable, so replacing the dish regularly matters as much as the feeding schedule itself.

Occasional appropriately-sized live feeder insects add enrichment on top of a complete CGD diet, though they aren't strictly required nutritionally the way they are for a more insectivorous species.

Common mistakes with this species

Running the enclosure even slightly too warm is a distinctly common and consequential mistake for this species specifically — heat stress in crested geckos shows up as appetite suppression well before more obvious signs, unlike the more heat-tolerant lizards on this site.

Because this species does not regenerate a dropped tail, grabbing at the tail or startling a gecko into a panicked jump is a mistake with permanent consequences here in a way it isn't for a leopard gecko — low, careful handling matters more for this reason alone.

Lifespan and what to expect

15-20 years is a long commitment for a species whose modern pet-trade history only began after its 1994 rediscovery — nearly every crested gecko in captivity today descends from that small rediscovered population, a genuinely unusual origin story among commonly-kept reptiles.

Growth and feeding frequency taper from juvenile to adult similarly to other geckos on this site, with adults settling into a steadier 3-4x weekly feeding rhythm rather than the more frequent feeding a fast-growing juvenile needs.

Because the entire modern captive population descends from a genetically narrow founder group rediscovered in 1994, responsible breeders pay particular attention to lineage diversity when pairing animals — a consideration less relevant to a keeper of a single pet gecko, but worth knowing if considering breeding down the line.

A crested gecko's permanently lost tail once dropped changes its silhouette but not its health or lifespan — a tailless adult ('frog butt' in hobbyist slang) is a completely normal, common sight in this species and shouldn't be read as a sign of past neglect or an ongoing problem.

Temperament in more depth

This species is an agile jumper capable of moving fast for its size, so handling low over a soft surface matters more here than with most geckos — a fall or a startled leap carries real injury risk given how this species moves.

Individual temperament ranges from calm and food-motivated to notably more skittish, and because tail loss here is permanent, calm, low-startle handling technique is worth prioritizing over quickly building a 'bold' handling routine the way some keepers approach a bearded dragon.

Most crested geckos become reliably comfortable with gentle handling within the first month in a new home, provided sessions stay brief and low-pressure early on rather than attempting extended handling before the gecko has settled in.

Signs of good health

Common problems

14 common reptile problems are tracked for this species; 14 have full guides published so far.

Recommended gear for this taxon

Equipment categories that are genuinely correct for this species' welfare needs — see the full Gear Guide for the complete list.

Digital infrared temperature gun

Measures actual basking SURFACE temperature, not just ambient air — a stick-on dial thermometer reads air temp, which is a poor proxy for the surface temp that drives digestion and thermoregulation.

Proportional (not on/off) thermostat

Holds a heat source at a stable target temperature rather than the wider swings an on/off thermostat allows — meaningfully reduces both overheating and cold-snap risk.

T5 HO UVB tube + reflector fixture

T5 HO output is more consistent across the basking area than compact/coil UVB bulbs, and a reflector fixture roughly doubles usable UVB output from the same bulb — match the % output to your species' sourced requirement and replace every 6-12 months regardless of visible light output.

Some links below are Amazon Associates / Chewy affiliate links — Keepers Guide may earn a small commission on qualifying purchases, at no extra cost to you. We only recommend equipment categories that are genuinely correct for the species' welfare needs; we never recommend a product because of the commission.

This is general educational care information, not veterinary diagnosis. For a sick or injured animal, see a qualified exotic-animal vet promptly — especially for anything acute (not eating combined with lethargy, breathing changes, bleeding, or any sudden behavior change). Nothing on this page substitutes for an in-person exam.