🦎 The Best Leopard Gecko Tank Setup: A Beginner Buying Guide

The leopard gecko is often called one of the best beginner reptiles, and it's easy to see why — they stay small, are calm to handle, and don't demand the huge, blazing-hot habitats some lizards do. The catch is that the setup is the hard part. Get the enclosure, heat, and hides right, and day-to-day care becomes genuinely simple and rewarding.

Enclosure size & type

A single adult leopard gecko needs a minimum of a 20-gallon long tank, and as always bigger is better — extra floor space lets your gecko explore and spreads out the warm and cool zones. A front-opening enclosure makes daily care easier and is far less stressful than reaching down from above, since geckos are ground-dwellers who don't love things swooping in overhead.

Heat & lighting

Leopard geckos absorb heat through their bellies, so the priority is belly heat from an under-tank heat mat (a low-watt overhead heat source can also work). Aim for a warm side around 90°F and a cool side around 75°F so your gecko can choose where to sit. Always run the heat source on a thermostat — this is non-negotiable, as an unregulated mat can overheat and burn. Keep a thermometer and hygrometer on hand to track temperature and humidity. Because leopard geckos are nocturnal to crepuscular (active at dusk and night), they don't rely on strong daylight, but a low level of UVB is optional and beneficial for their long-term health.

Hides & shedding

Hides are where leopard geckos feel safe, and you want three of them: a warm hide on the heated side, a cool hide on the other end, and a humid hide in the middle filled with damp moss. That moist hide is essential — it helps your gecko shed its skin cleanly, which prevents stuck shed around the toes and eyes. Check and re-dampen the moss regularly so it never dries out.

Substrate

Use a solid substrate such as tile or paper towel, especially for young geckos. Avoid loose sand, which a gecko can accidentally swallow while snapping at food and which can cause impaction. Solid flooring is also easier to keep tidy and lets you monitor your gecko's droppings for signs of trouble.

Feeding

Leopard geckos are strict insectivores — they eat live bugs and nothing else. Offer gut-loaded crickets or dubia roaches dusted with calcium. "Gut-loading" simply means feeding the insects nutritious food before they go to your gecko, so your pet gets that nutrition secondhand. Feed appropriately sized prey (nothing wider than the space between the gecko's eyes) and dust with calcium regularly to keep bones strong.

Daily & weekly care

Day to day, check that temperatures are holding, refresh the water dish, and keep the humid hide moist. Feed on a schedule that suits your gecko's age, and spot-check the enclosure for anything out of place. Handling can begin once your gecko has settled in — go slowly, support the body, and keep sessions short at first. Leopard geckos are famously mellow, and with good care they can live 15–20 years, so a little patience early on pays off for a long time.

Quick setup checklist

• 20-gallon long minimum, front-opening, bigger is better
• Belly heat from an under-tank mat; warm side ~90°F, cool side ~75°F
• Heat source ALWAYS on a thermostat
• Thermometer and hygrometer to monitor conditions
• Three hides: warm, cool, and a humid hide with damp moss
• Solid substrate (tile or paper towel), not loose sand
• Gut-loaded crickets or dubia dusted with calcium
• Optional low-level UVB for added health

Weighing your options among easy first reptiles? Compare notes with our beginner reptiles guide, peek at a bearded dragon setup for contrast, and take our free pet quiz to find your perfect match.

🛒 Recommended supplies

Hand-picked gear for this guide. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

🧽 Cleaning & maintenance

Spot-clean daily: remove droppings, shed skin, and uneaten feeder insects as soon as you see them, and refresh the water dish. Wipe the glass and disinfect the food and water bowls weekly. Every month or two do a deeper clean — replace or sift the substrate and scrub the enclosure and décor with a reptile-safe disinfectant (such as diluted chlorhexidine or an F10 solution), rinsing and drying fully before the gecko goes back in. Avoid household disinfectants and strong fumes, which can be toxic to reptiles, and always wash your hands after cleaning to prevent germs like salmonella.

Cleaning supplies for this habitat. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

❓ Common questions