How do I set up a crested gecko enclosure?

The arboreal-vertical framing

Crested geckos (Correlophus ciliatus) are arboreal — they live in tree foliage in the cool forests of New Caledonia and spend almost their entire active life climbing. Per the PetMD crested gecko care sheet and the ReptiFiles crested gecko care guide, the enclosure design principle is vertical, not horizontal — same as chameleons and other arboreal species, different from ground-dwelling reptiles.

A horizontal tank with the same total volume as a vertical terrarium doesn't work as well: less vertical climbing, less hiding choice, no top-to-bottom thermoregulation gradient.

Enclosure size and orientation

Front-opening glass terrariums (Exo Terra, Zoo Med, similar) are the standard. Front access reduces stress; tall vertical orientation matches gecko behaviour.

Substrate choice

Most experienced keepers move to bioactive long-term. Initial setup is more work; ongoing maintenance is dramatically less.

Climbing structures

The single most important enclosure feature for a crested gecko:

• Multiple climbing branches at different heights and angles — cork bark, mopani wood, manzanita, or grapevine.
• Branches angled diagonally to allow climbing and resting.
• Branches near the top for high resting spots (geckos prefer elevated positions for security).
• Branches at varied heights to create a vertical "highway."

A fully-furnished enclosure looks busy with foliage and branches. The gecko should be able to move from substrate to top without crossing open space.

Live plants

Live plants help maintain humidity, provide cover and climbing surfaces, and look naturalistic. Best options for crested gecko enclosures:

Avoid: peace lily (toxic), philodendron (mildly toxic if eaten in quantity), succulents that need dry conditions.

Plants need adequate lighting to thrive — a UVB tube or daylight LED helps. Plants in a dimly-lit enclosure will eventually die.

Hides

Crested geckos hide during the day and emerge at dusk. Provide multiple hide options:

• Cork bark tubes — natural, durable, at multiple heights.
• Magnetic hide ledges — mount on glass walls for elevated hiding.
• Dense foliage clusters — pothos thickets work as living hides.
• Humid hide — small lidded container with damp sphagnum moss for shed cycle support.

Hides at different heights (top, middle, bottom) let the gecko choose its position based on temperature, humidity preference and security.

Heating — usually not needed

Per crested gecko UVB and heat, crested geckos thrive at 72–78 °F / 22–26 °C ambient. Most rooms provide this naturally without supplemental heat. Heat lamps:

• Create hot spots crested geckos don't need.
• Risk heat stress if room temperatures climb.
• Dry out humidity from radiant heat.

Only add supplemental heat (deep heat projector or low ceramic emitter on thermostat) if your room consistently drops below 65 °F.

UVB — optional, modern best practice

Low-level UVB (UVI 0.5–1.0 from a T5 HO 5.0 tube) is now considered best practice for crested geckos, though historically they were kept successfully on supplementation alone. If you add UVB:

• T5 HO 5.0 (Arcadia ShadeDweller 7 % or Zoo Med ReptiSun 5.0).
• Mounted inside the enclosure, 30–40 cm above highest branches.
• 12 hours on, 12 hours off photoperiod.
• Replace at 12 months.

See crested gecko UVB and heat for the full discussion.

Humidity and misting

Target humidity 70–80 %, cycling down to 50–60 % between mistings:

• Morning mist — heavy mist to spike humidity for 1–2 hours. Provides drinking droplets and humidity cycle.
• Evening mist — lighter, just before dusk activity.
• Misting system (Mistking, ZooMed Repti-Rain) for automation.
• Hand sprayer for backup or smaller enclosures.

Don't let humidity stay above 80 % continuously — needs to cycle down to prevent respiratory infection. See crested gecko humidity.

Water bowl

A small water dish at the floor of the enclosure:

• Shallow, heavy ceramic — won't tip.
• Replace water daily — prevents bacterial growth.
• Backup hydration — geckos mostly drink misted droplets.
• Slight humidity contribution via evaporation.

Top — screen or covered?

Screen top is standard for ventilation. In very dry rooms, cover part of the screen with HDPE plastic or foil to reduce evaporation and stabilize humidity. Don't fully seal the top — ventilation prevents stagnant humid air and respiratory infection.

Cohabitation

Most crested gecko keepers house geckos individually. Some keep female-female pairs in large enclosures (24+ inches wide), but it requires careful monitoring for stress and competitive feeding. Two males will fight; male-female pairs only encounter for breeding. When in doubt, house individually.

Complete setup example

For an adult crested gecko:

1. Exo Terra 18×18×24 in vertical front-opening terrarium with screen top.
2. 5 cm coco coir substrate with sphagnum moss top layer.
3. Live pothos rooted in substrate, climbing up the back wall.
4. Live ficus in a small pot.
5. 3–4 climbing branches of varied diameters at different heights.
6. 2 cork bark tubes at different heights for hides.
7. 1 humid hide with damp sphagnum moss.
8. Small shallow water bowl at floor level.
9. CGD feeding ledge mounted at branch level.
10. T5 HO 5.0 UVB tube mounted on top (optional but recommended).
11. No heat source (room temperature 72–78 °F).
12. Misting system or daily hand misting.

Setup cost approximately $200–400 depending on enclosure choice and whether you go bioactive.

The summary framing

Crested gecko enclosures are vertical front-opening terrariums (18×18×24 in minimum for adults), densely furnished with branches and foliage, on coco coir or bioactive substrate, misted twice daily for 70–80 % humidity, and almost never need supplemental heat. The setup is among the easiest reptile enclosures to maintain once established.

For the broader care plan, see crested gecko care guide. For humidity specifically, see crested gecko humidity. For diet, see crested gecko diet.