Mourning Gecko Heating: Why You Probably Don't Need Any
| Ideal ambient temp | 75–82°F |
| Heat stress risk above | ~82°F |
| Dedicated heat source needed? | Usually no |
This is the opposite of a basking species
Unlike bearded dragons or many popular lizards, mourning geckos come from a shaded, humid forest habitat and don't need an intense basking spot at all. Adding unnecessary heat equipment can actually push temperatures into dangerous territory for this species.
Heat stress is the real risk, not cold
Sustained temperatures above roughly 82°F (28°C) can cause lethargy, appetite loss, and in severe or prolonged cases, be fatal — sometimes informally called 'mourning gecko syndrome' related distress, though it's really heat stress rather than a distinct disease. Watch enclosures in rooms that get warm in summer, especially near windows.
If you do need supplemental heat
In a cold room that regularly drops below the mid-60s°F, a very low-wattage heat source on a thermostat, kept well away from direct exposure, can help — but check first whether room temperature genuinely needs it before adding anything.
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A single adult mourning gecko needs a minimum 12"x12"x18" front-opening, well-ventilated enclosure — taller matters more than wider since this species is highly arboreal — furnished with cork bark, branches, and dense foliage for climbing.
A complete mourning gecko setup needs a tall 18"+ front-opening enclosure, cork bark and branches for climbing, coco fibre/moss substrate, a misting routine to hold 60–80% humidity, and complete MRP powder — no heat lamp is required in most homes.
Hatchlings can start in a small (roughly 5"x5"x8") enclosure to make food easier to find, juveniles move up around a few months old, and adults need a minimum 12"x12"x18" vertical enclosure.
Low-level UVB (roughly 5–6% output) is increasingly recommended as good practice, though it isn't strictly mandatory for mourning geckos the way it is for a strongly basking desert species — their diet's built-in D3 from MRP covers much of the gap.
Mourning geckos need roughly 60–80% humidity, achieved through misting once or twice daily, with good ventilation to prevent the dampness from turning stagnant.
Mourning geckos commonly live 5–8 years in captivity with correct husbandry, occasionally more — a notably long lifespan for a small gecko and a genuine long-term commitment.