Mourning Gecko Reproduction: The Basics of Parthenogenesis
| Reproductive maturity | ~4–6 months |
| Clutch size | 2 eggs, repeated every 2–4 weeks |
| Male required? | No |
Timing
Females can begin laying viable eggs remarkably young for a reptile, often around 4–6 months old once they've reached a healthy weight and body condition — a reflection of how metabolically efficient this small, fast-reproducing species is.
Small, frequent clutches
Unlike larger reptiles laying big clutches, mourning geckos lay just 2 eggs per clutch, but can lay repeatedly, roughly every 2–4 weeks, given adequate food and calcium — a real ongoing metabolic demand on the female that needs monitoring for calcium depletion in an active colony.
No male needed, ever
Every clutch a healthy adult female lays is potentially fertile without any mate at all — this is simply how the species reproduces, not a fallback or unusual event. An established colony of females will continue producing hatchlings indefinitely.
Planning for it, not avoiding it
Because reproduction can't be prevented by separating sexes (there's nothing to separate), anyone starting a colony should decide in advance how they'll manage ongoing eggs and hatchlings — whether that's simply letting the colony self-regulate, removing eggs, or rehoming surplus hatchlings.
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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.
Mourning geckos generally do best at normal room temperature, roughly 75–82°F, and can suffer heat stress above about 82°F. Most homes need no basking bulb or heat mat at all — just monitoring during hot weather.
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.