Mourning Gecko Care: Complete Guide

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Mourning gecko care is easier than most gecko care in some ways. It is stranger in others.

The animal itself is undemanding. It is small, quiet, and content in a modest planted terrarium.

The strangeness comes from biology. Every mourning gecko for sale in the pet trade is female. Every one of them can lay fertile eggs alone.

This guide covers the full mourning gecko care sheet. That means enclosure size, bioactive setup, temperature, humidity, diet, health, and the colony questions that come up once eggs start appearing. For basic identification and range, start with the mourning gecko overview.

Mourning gecko as a pet: what to expect

A mourning gecko as a pet suits a keeper who wants a low footprint animal. It does not need to be handled to be enjoyable. Adults reach a small size, typically three to four inches including the tail.

They live two to four years in captivity. Well kept individuals occasionally reach five. That lifespan is shorter than many other popular gecko species.

New keepers often underestimate it. Plan for a multi year commitment, not a decade long one.

Mourning geckos are crepuscular. They are most active at dusk and dawn, and they spend daylight hours tucked into cork bark, leaf litter, or plant cover.

A single animal can live happily alone. This species is more often kept as a small colony, though, because that is how it exists in the wild.

Wild populations disperse as single females. Each one can found an entire new colony on her own. That trait ties directly to how the species reproduces.

Mourning gecko care starts with the setup: enclosure size and layout

A single adult does well in roughly 10 gallons or a comparable front opening terrarium. Give it more vertical space than floor space, since this species climbs constantly and rarely sits on the ground.

Add a few more gallons per additional gecko for a colony. Crowding drives stress and food competition, even among geckos that tolerate close quarters.

Front opening glass or PVC enclosures work better than top opening tanks. Mourning geckos are fast and will bolt for an open lid. A front opening door keeps that risk lower during feeding and misting.

A front opening glass terrarium built for small arboreal geckos is a common starting point. Taller cage styles sold for crested or day geckos also work well, since they share similar climbing habits.

For general sizing rules across gecko species, see the lizard enclosure sizing guide. Décor should prioritize climbing surfaces over open floor space.

Cork bark tubes and flats, sturdy plants, and a layer of leaf litter give the geckos places to hide and perch. Mourning geckos also glue their eggs to hard surfaces, cork bark, plant leaves, and the glass itself.

Expect to see small white egg pairs stuck around the enclosure once a colony matures.

Bioactive setup for mourning geckos

A bioactive substrate is a common choice for this species. The humidity and cleanup needs line up well with how mourning geckos actually live.

A tropical mix of coco fiber, sphagnum moss, and leaf litter over a drainage layer holds humidity better than dry substrate. It also supports live plants.

Springtails and tropical isopods form the cleanup crew. They break down waste and uneaten food before it molds. Skip sand, gravel, corncob and cedar or pine shavings, which carry ingestion or respiratory risks.

A premixed tropical bioactive substrate saves time over building layers from scratch. Add a starter culture of springtails weeks before the geckos arrive, so it establishes before waste starts building up.

For the full breakdown of drainage layers, substrate depth, and plant choices, see the bioactive enclosure guide. A simple non bioactive setup with paper towel or coco fiber substrate and manual spot cleaning also works fine for a first time keeper.

Mourning gecko temperature and humidity

Mourning gecko temperature needs sit in the mid to warm tropical range. Keep the ambient daytime temperature between 75 and 82 degrees Fahrenheit. Allow a slight night drop into the low 70s.

A small basking area a few degrees warmer, around 82 to 85 degrees, gives the geckos a place to thermoregulate. This species does not bask heavily the way a day gecko does, though.

Avoid sustained temperatures above the mid 80s. This species comes from humid coastal and forest habitat, not open, hot terrain.

Mourning gecko humidity should stay in the 60 to 80 percent range. Allow a brief drier period between mistings, so the enclosure is not constantly saturated. Sustained readings above 70 percent with poor airflow invite skin and respiratory problems, so pair high humidity with cross ventilation.

Mist once or twice daily with a handheld pressure sprayer. Wet plants and décor without pooling water on the floor. Keep a shallow water dish available at all times as well.

Use a digital hygrometer and thermometer, not the analog dial type. A digital hygrometer and thermometer combo gives an accurate read on both numbers.

Place it at gecko height rather than near the vents. That gives a more honest reading of what the animals actually experience. Veterinary guidance calls for two thermometers, one at the warm end and one at the cool end.

Heating and lighting for mourning geckos

Room temperature alone is rarely enough to hold the target range. Most keepers add a small heat source controlled by a thermostat, rather than leaving a bulb running unregulated.

Overheating kills geckos faster than a temperature slightly below target. A thermostat is not optional in most home climates.

UVB is not strictly required for a species this shade tolerant and crepuscular. Good mourning gecko care increasingly includes a low output UVB bulb anyway, as best practice.

It supports natural vitamin D3 production. It also reduces total reliance on dietary supplementation alone.

A low output UVB bulb built for shade dwelling and crepuscular species mounted at one end of the enclosure lets the geckos choose their own exposure. Keep the bulb within 18 inches of the perches the geckos use, since UVB output falls off quickly with distance. For the reasoning behind UVB use across gecko species, see the heating and UVB guide.

Mourning gecko diet and feeding

Mourning geckos are dietary generalists in the wild. They feed on a wider range of invertebrates than many related gecko species, and captive diets should reflect that variety.

Offer a commercial powdered gecko diet mixed with water two to three times per week. It covers fruit sugars, protein, and vitamins in one product, and it is easy for a small mouth to eat.

A commercial complete gecko diet formulated for crested and day geckos works for mourning geckos too. All three species share a similar generalist, partly frugivorous diet.

Small live insects round out the diet. They give the geckos hunting behavior to express.

Flightless fruit flies, pinhead crickets, and small roach nymphs sized to the gecko’s head width are all appropriate. Offer live insects once or twice a week, lightly dusted with calcium.

Gut load feeder insects with fresh vegetables and a commercial gut loading diet for at least 24 hours before feeding them off. See the feeder insects guide for sizing and gut loading details that apply across small gecko species.

Dust insects with a calcium supplement at most feedings. Use a calcium with D3, or a separate multivitamin roughly once a week, if the enclosure lacks UVB.

Remove uneaten live insects after a few hours. Left overnight, they can stress or nip at the geckos.

Colony growth and parthenogenesis

The biggest difference between mourning gecko care and almost every other pet gecko is reproduction. Mourning geckos reproduce through parthenogenesis. Females produce viable, genetically identical offspring without a male.

Males are vanishingly rare and sterile, so the hobby population is entirely female. A female lays two eggs per clutch and can reproduce year round under stable warm conditions. In one published captive study, clutches came 24 to 73 days apart, with a mean of 34 days, and one female laid 12 clutches in two years.

Dominant, well fed females produce more clutches per year than subordinate ones in the same enclosure. That is why a single gecko purchased alone can eventually produce a whole colony without any intervention. At six clutches a year, one adult can add ten or more hatchlings to a tank in twelve months.

Eggs are laid with a hard, calcified shell. That shell resists drying out and brief exposure to salt water, an adaptation that historically let this species raft between Pacific islands.

In a terrarium, that same toughness means eggs survive being glued to glass, cork bark, or plant leaves. They typically hatch in about two to three months, with warmer enclosures at the short end of that range.

Decide on a colony management plan before eggs start appearing, not after. One option is letting the colony grow naturally and rehoming or separating offspring as they mature.

Another is moving eggs to a separate container to control hatch timing. A third is keeping only a single gecko if you specifically want to avoid breeding.

An enclosure that is too small for the number of adults inside it leads to stress and reduced feeding. It can also cause occasional tail loss between animals competing for space and food.

If you keep more than two or three adults together, watch for one gecko consistently guarding food or basking spots. Add more feeding points and cover if that pattern shows up.

For background on how gecko social structure and dominance generally works, see the gecko behavior guide. Broader egg laying mechanics for geckos as a group appear in the gecko breeding guide, though the parthenogenesis details above are specific to this species.

Mourning gecko health and common problems

Good mourning gecko care shows in a few signs. A healthy animal is alert at dusk, has smooth even skin between sheds, and eats readily within a day or two of food being offered.

Watch for a few problems that show up repeatedly in this species. Stuck shed around the toes and tail tip is the most common issue, especially in enclosures running too dry.

Raise humidity and misting frequency if you see retained shed skin. Add more cork bark or rough surfaces for the gecko to rub against.

Soft or bent jaws and a swollen, weak tail base point toward metabolic bone disease. That comes from insufficient calcium or vitamin D.

This is preventable with consistent calcium dusting and either UVB lighting or reliable D3 supplementation. It is worth a reptile veterinarian visit if you see it develop.

Egg binding is uncommon in this species compared with larger geckos, since the eggs are small. A female that strains without producing eggs, or stops eating for more than a week, should be evaluated by a reptile veterinarian rather than watched at home.

Overcrowded colonies are the most common underlying cause of stress related illness in mourning gecko care specifically. If health problems appear across several animals at once, check enclosure size and feeding access before assuming disease.

For general symptom checklists and when a reptile vet visit is warranted, see the lizard health guide.

Handling and temperament

Mourning geckos are not a handling pet. They are small and fast. Their skin and tail are delicate, and most individuals will drop the tail if grabbed or startled.

Tails regrow. They never match the original in color or shape.

Treat this species as a display and observation animal in daily mourning gecko care. Feeding time and quiet observation at dusk are where most of the enjoyment of keeping this species comes from.

If you do need to move a gecko, cup it gently in both hands. Guide it into a small container rather than pinching or grabbing at the body or tail.

Frequently Asked Questions

How big does a mourning gecko enclosure need to be?

A single adult does well in roughly 10 gallons of vertical space, with a few extra gallons added per additional gecko in a colony. Height matters more than floor space, since this species climbs constantly rather than staying on the ground.

Do mourning geckos need UVB lighting?

UVB is not strictly required for this crepuscular species, but a low output bulb is now widely recommended as good practice for vitamin D3 production. Without UVB, calcium with D3 supplementation needs to be consistent instead.

Why does my mourning gecko have eggs with no male present?

All mourning geckos in the pet trade are female, and the species reproduces through parthenogenesis, producing viable clonal offspring without fertilization. A single gecko can start laying fertile eggs on its own once mature.

How often should I feed a mourning gecko?

Offer a commercial powdered gecko diet two to three times a week, plus small calcium dusted live insects once or twice a week. This mirrors the species’ natural generalist diet of fruit, nectar, and small invertebrates.

Can mourning geckos live together in groups?

Yes, and colony keeping is common since it reflects how this species naturally lives. Watch enclosure size and food access as the colony grows, since crowding and competition are the main sources of stress in group setups.

How long do mourning geckos live?

Most mourning geckos live two to four years in captivity, with well kept individuals occasionally reaching five. That is shorter than many other popular pet gecko species, so plan care around that lifespan.