Mourning Gecko Care: The Complete Beginner's Guide

TL;DR: Mourning geckos (Lepidodactylus lugubris) are tiny (3–4 inches), all-female parthenogenetic geckos that thrive in bioactive vivariums with live plants, isopods, and springtails. They need a minimum 12×12×18-inch vertical enclosure, temperatures of 72–80°F, and humidity of 70–80% — in most temperate homes, no supplemental heating is needed. They live 10+ years in captivity but are best kept as display animals rather than handling pets due to their speed and fragility.

Mourning geckos (Lepidodactylus lugubris) are among the most fascinating small reptiles you can keep. Barely reaching 3-4 inches long, these diminutive geckos pack enormous personality into a tiny frame. They are parthenogenetic -- meaning females can reproduce without males -- making them one of the few all-female reptile species in the hobby. If you're drawn to a low-maintenance, visually captivating gecko that thrives in a lush bioactive enclosure, the mourning gecko might be your perfect match.

In this guide, we cover everything you need to know: enclosure size, temperature, humidity, diet, substrate, and more.

Quick Facts: Mourning Gecko at a Glance

Mourning Gecko Enclosure Size

Despite their tiny size, mourning geckos are active climbers that need vertical space more than floor space. They hail from tropical Pacific island habitats -- dense vegetation, warm humid air, and dappled light.

Minimum enclosure size:

• For 1-2 geckos: 12" x 12" x 18" (30 x 30 x 45 cm) front-opening terrarium
• For a small colony of 3-4: 18" x 18" x 24" is much better

Front-opening enclosures like the Exo Terra or ZooMed Naturalistic Terrarium are ideal because top access panics arboreal geckos. Look for mesh tops that allow good airflow -- essential for preventing stagnant, overly damp conditions.

Mourning geckos do extremely well in bioactive setups with live plants like pothos, bromeliads, and ficus pumila. The plants stabilize humidity, provide enrichment, and create a self-cleaning ecosystem with isopods and springtails.

Temperature Requirements

Mourning geckos are tropical but not heat-lovers. They prefer moderate, stable temperatures:

• Daytime ambient: 72-80 degrees F (22-27 degrees C)
• Basking spot (optional): 80-82 degrees F max
• Night-time: Can drop to 65-70 degrees F -- fine and even beneficial

In most temperate homes (68-75 degrees F room temperature), you may not need supplemental heating at all. If your home dips below 68 degrees F in winter, a low-wattage reptile heat mat placed on one side of the enclosure works well. Avoid hot basking lamps -- mourning geckos don't bask the way larger lizards do.

Warning: Never let temperatures exceed 85 degrees F (29 degrees C). Heat stress is one of the top killers of mourning geckos in captivity.

UVB Lighting: Do Mourning Geckos Need It?

This is a common question. Mourning geckos are crepuscular and nocturnal, so they don't bask under intense sunlight. However, low-level UVB exposure is still beneficial for calcium metabolism and overall health.

Recommendation: A low-output UVB bulb (5.0 or T5 HO 6%, positioned 12-18 inches away) on a 10-12 hour cycle mimics natural photoperiod and supports bone health. It also supports plant growth in bioactive setups.

If you choose not to use UVB, ensure their calcium supplement is dusted on every feeding.

Humidity: Getting It Right

Humidity is arguably the most critical factor in mourning gecko care. These geckos come from humid tropical environments and require 60-80% relative humidity, with bursts to 90-100% after misting.

How to maintain humidity:

• Mist the enclosure once or twice daily -- morning and/or evening -- letting it dry out partially between misting sessions. This wet-dry cycle is important; constant saturation promotes mold and respiratory issues.
• Use a digital hygrometer to monitor levels accurately.
• A bioactive substrate (coconut fiber + sphagnum moss + organic topsoil) retains moisture beautifully and helps stabilize humidity.
• Covering 50-70% of the mesh top with glass or plastic reduces moisture loss.

Do mourning geckos need misting? Absolutely yes -- misting is their primary water source. Mourning geckos typically don't drink from standing water bowls; they lap water droplets off leaves and enclosure walls.

Substrate for Mourning Geckos

For a bioactive setup -- which is highly recommended -- use a drainage layer + substrate layer combination:

1. Drainage layer: LECA pebbles or hydroballs (2-3 inches deep)
2. Separation layer: Fine mesh or window screen to prevent substrate mixing
3. Substrate: 70% organic topsoil + 30% sphagnum or coco fiber (3-4 inches deep)

This setup supports live plants, allows beneficial microfauna (springtails and isopods) to thrive, and provides a naturalistic environment your geckos will love.

For non-bioactive setups, a simple layer of coconut fiber substrate works fine and is easy to spot-clean.

Decorating the Enclosure

Mourning geckos spend almost all their time climbing and hiding in vegetation. An enriching setup should include:

• Live or silk plants: Pothos, bromeliads, ficus pumila, tillandsia, and peperomia all do well
• Cork bark tubes and flats: Great climbing and hiding surfaces
• Bamboo sections or hollow logs: Additional hides at different heights
• Leaf litter: Magnolia or oak leaves on the substrate -- geckos love to hide in them and hunt in them

The more coverage and complexity you add, the more comfortable and active your geckos will be. Bare enclosures stress these shy animals.

Feeding and Diet

Mourning geckos are omnivores with a sweet tooth. Their diet in captivity consists of two main components:

Crested Gecko Diet (CGD)

Commercial meal replacement powders (MRPs) like Repashy or Pangea fruit mix are the staple. Mix a small amount with water to a ketchup consistency and offer in a shallow bottle cap or magnetic feeding ledge. Mourning geckos eat these enthusiastically and get most of their nutrition from them.

• Feed MRP 3-4 times per week
• Remove uneaten food within 24-36 hours to prevent bacterial growth

Live Insects (Supplemental)

Small live insects add enrichment and additional protein:

• Fruit flies (Drosophila melanogaster): The primary insect prey -- appropriately sized for these tiny geckos
• Pinhead crickets: For adult geckos
• Small waxworms: As an occasional treat

Dust insects with calcium powder (without D3) every feeding, and with a multivitamin supplement every 2-4 weeks.

Fruit fly cultures are a must for mourning gecko keepers. You can purchase ready-made fruit fly cultures that produce weeks of feeders.

Do Mourning Geckos Need a Water Bowl?

Generally, no -- mourning geckos hydrate primarily by drinking water droplets from misted surfaces. However, a very shallow bottle cap or small dish of fresh water won't hurt and may be occasionally used. Keep it shallow enough that tiny hatchlings can't drown.

Handling Mourning Geckos

Here's the honest truth: mourning geckos are not ideal handling pets. They are extremely fast, skittish, and stress easily when grabbed. Many experienced keepers describe them as "display animals" -- beautiful to watch but not cuddly companions.

That said, geckos that are gently, patiently worked with from a young age can become more tolerant. If you want to handle them, let them walk onto your hand voluntarily rather than grabbing them. Keep sessions short -- under 5 minutes.

For tips on reading your reptile's body language and reducing handling stress, check out our reptile handling guide -- the techniques apply to small geckos too.

Mourning Gecko Reproduction

One of the most fascinating aspects of mourning gecko biology: they are parthenogenetic. Every mourning gecko you encounter in the pet trade is female, and they can produce fertile eggs without mating. A single gecko will lay clutches of 1-2 eggs every 4-6 weeks, which hatch in approximately 65-90 days at room temperature.

Eggs are typically glued to cork bark, plant leaves, or enclosure walls -- they're sticky and hard to move without damaging. If you want to hatch them separately, gently transfer the surface they're stuck to into a small incubation container.

Common Health Issues and Mistakes

Mourning geckos are hardy when conditions are right, but beginner mistakes can cause serious problems. Common issues include:

• Overheating: The #1 killer -- keep temperatures below 85 degrees F
• Dehydration: Inadequate misting leads to retained sheds and organ stress
• Metabolic bone disease: From lack of calcium or UVB
• Respiratory infections: From chronically wet substrate with no dry period
• Stress-related issues: Overcrowding, excessive handling, or an enclosure with no hiding spots

For a broader look at rookie errors that harm reptiles, our article on common lizard owner mistakes covers exactly what to avoid as a new keeper.

Is a Mourning Gecko Right for You?

Mourning geckos are perfect for keepers who:

• Love the idea of a naturalistic, planted terrarium
• Are happy to watch rather than handle their pets
• Want a low-cost reptile (feeder-wise) that doesn't need complex heating
• Are interested in the biology of parthenogenesis and reproduction

They're less ideal for people who want a hands-on, interactive pet. For that, consider a crested gecko or a leopard gecko instead.