Enclosure

Housing & setup

Getting the enclosure right before you bring a gecko home makes everything easier. Temperatures, substrate, hides — these aren't optional extras, they're the baseline for a healthy animal.

Skip the heat equipment — most homes don't need it. Unlike many popular pet reptiles, mourning geckos generally do best at normal room temperature and can suffer heat stress above roughly 82°F. Adding an unnecessary basking bulb or heat mat is a common beginner mistake for this species, not a requirement.
Temperature & humidity
Safe ambient range
75–82°F

Normal room temperature works for most homes — no basking bulb or heat mat is usually needed. The danger here is heat, not cold: sustained temperatures above roughly 82°F risk lethargy and appetite loss.

Humidity target
60–80%

This is a humid forest species, not an arid one — maintained through misting once or twice daily, with good ventilation to stop that dampness turning stagnant.

Ventilation matters as much as misting. Mesh sides or a well-ventilated screen top let humid conditions stay healthy instead of turning into stagnant, mould-prone dampness. A largely sealed glass enclosure works against the humidity balance, not for it.
Vertical furnishing
Cork bark & branches

The single most important furnishing category for this species. Mourning geckos are highly arboreal and spend nearly all their time off the ground — fill the enclosure with cork bark rounds, flats, and grapevine or manzanita branches, not floor decor.

Dense foliage

Live or artificial leafy cover gives a naturally shy, mostly nocturnal species places to feel secure during the day. Bromeliads, orchids, and creeping fig all work well and tolerate the humidity this enclosure needs.

Mid-height feeding ledge

Mourning geckos feed at height in the wild — mounting the MRP dish partway up the enclosure rather than on the floor better matches natural feeding behaviour and keeps food away from substrate contamination.

Substrate options
Coconut fibre (eco earth) + sphagnum moss topper

The standard for a humid bioactive mourning gecko setup. Holds moisture well, supports live plants, and a springtail/isopod clean-up crew if running fully bioactive — genuinely useful here since it can also feed hatchlings. Refresh regularly to prevent mould buildup.

Safe
Paper towel

Best for hatchlings, quarantine, or a simple non-bioactive setup. Easy to monitor and replace, though not visually appealing or humidity-retentive long-term.

Safe
Sphagnum moss (as primary layer)

Excellent moisture retention for a humidity-dependent tropical species. Keep damp, not soaking, and replace if it starts to smell or grow mould.

Safe
Reptile carpet

Retains less humidity than coco fibre and can harbour bacteria if not washed frequently. Less useful here than for larger geckos, since a mourning gecko spends almost no time on the substrate anyway.

Caution
Loose substrate for hatchlings kept on live insects

A hatchling hunting fruit flies on loose substrate can occasionally ingest particles along with prey. Use paper towel for very young geckos until established, switching to bioactive substrate afterward.

Caution
Sand

Not suited to this species at all — wrong humidity profile for a substrate that needs to stay damp, and carries an impaction risk if ingested with prey. There's no good reason to use sand in a mourning gecko enclosure.

Avoid
Walnut shell

Sharp edges can lacerate the digestive tract and cause severe impaction if ingested, and are far too large-grained for an animal this size regardless. Avoid entirely.

Avoid
Cedar or pine shavings

Aromatic oils are toxic to reptiles, and the material holds moisture poorly for a humidity-dependent species while promoting mould.

Avoid
Setup checklist
Small, front- or top-opening tropical enclosure — 12"×12"×18" comfortably houses a colony of 4–6Essential
Mourning geckos are tiny (2–4g) and naturally colonial — because every individual is a genetic clone of the same all-female lineage, groups of females live together without the territorial aggression seen in many other gecko species. A taller, densely planted enclosure suits their climbing habits far better than floor space suggests a small footprint needs.
Cork bark, fine branches, driftwood, and dense leafy coverEssential
The single most important furnishing category — this species spends virtually its entire life climbing, and is light enough to move confidently on thin twigs, mesh, and even glass. Fill the enclosure with varied, closely spaced vertical structure.
No dedicated heat source needed in most homesEssential
Mourning geckos do best at normal warm room temperature (75–82°F / 24–28°C) and can suffer heat stress well below the basking temperatures many other reptiles need. Most keepers need no basking bulb at all — just monitor ambient room temperature, especially in summer.
Fine mesh or well-ventilated screen top/sides, with tight seamsEssential
Good airflow prevents the humidity this species needs from tipping into stagnant, mould-prone dampness — and because hatchlings are pinhead-sized, gaps that would be irrelevant on a larger gecko's enclosure are genuine escape routes here.
Digital hygrometerEssential
Target roughly 60–80% humidity, ideally spiking after misting and allowed to drop somewhat before the next misting rather than staying pinned high constantly.
Misting routine (manual or automated) 1–2x dailyEssential
Manual spray bottle misting once or twice a day works for most keepers; a misting system is popular for larger colonies. Good drainage or a false bottom prevents standing water build-up.
Shallow, very shallow water dishEssential
Most hydration actually comes from misted droplets on leaves rather than the dish, but a low-sided dish should still be available — anything with steep sides risks drowning an animal this small.
Low-level UVB (2–5% output)Recommended
Not strictly mandatory the way it is for a basking desert species, but increasingly recommended by experienced keepers and several reptile vets as good practice, positioned to avoid direct high-intensity exposure given this species' shaded, foliage-dense natural habitat.
Digital thermometerRecommended
Confirms ambient enclosure temperature stays within the safe range, particularly important if the room the enclosure is in can get warm in summer.
Feeding station mounted mid-to-upper heightRecommended
Mourning geckos feed at height on foliage in the wild — mounting the MRP smear and fruit fly release point partway up the enclosure better matches natural feeding behaviour and keeps food away from substrate contamination.
Egg-laying surfaces (bark crevices, film canisters, bromeliad axils)Optional
Because the species reproduces asexually and every adult female can lay eggs without a mate, an established colony will produce eggs regularly — soft, slightly textured surfaces and tight crevices give places for eggs to be laid and adhered securely.
Bioactive clean-up crew (springtails + isopods)Optional
Pairs well with the coco fibre/moss substrate this species already needs, processing waste and shed skin in a humid bioactive setup while also supplementing hatchling diets.
Never cohouse mourning geckos. They are solitary animals. Two geckos in one enclosure causes chronic stress, competition for resources, and frequently results in injury. Even two females who appear to tolerate each other are under stress that shortens their lives.