Leopard Gecko Tank Setup: Enclosure, Heating & Substrate Guide [2026]

Leopard Gecko Tank Setup Overview

Leopard geckos (Eublepharis macularius) are ground-dwelling geckos from the rocky, arid grasslands of Afghanistan, Pakistan, and northwest India. Their tank setup should mimic this environment with a warm, dry habitat that includes hiding spots, a temperature gradient, and appropriate substrate.

Enclosure Size and Type

Tank Size

• Floor space is more important than height — leopard geckos are terrestrial
• Front-opening enclosures are less stressful than top-opening tanks
• Glass tanks, PVC enclosures, and wooden vivariums all work well
• Never house two males together — they will fight

Heating

Temperature Requirements

Heating Options

• Halogen flood bulb — Best option; provides infrared-A heat from above, mimics natural sun warming
• Deep heat projector (DHP) — No light, infrared-B/C, excellent for day or night
• Under-tank heater (UTH) — Heats the floor only; must be on a thermostat; supplement with overhead heat for ambient warmth
• Ceramic heat emitter (CHE) — No light, good for nighttime supplemental heat

Thermostat

Every heat source must be on a thermostat. This is non-negotiable.

• Dimming thermostat for halogen bulbs and DHPs
• On/off thermostat for UTHs and CHEs
• Place the probe where the gecko rests on the warm side

Substrate

Best combo: Tile on the warm side (retains heat, files nails) with topsoil/sand mix on the cool side (allows digging behavior).

Hides (Most Important Furniture)

Leopard geckos are shy, crepuscular animals that spend most daylight hours hiding. Three hides are the standard:

1. Warm hide — On the warm side, over the primary heat source
2. Cool hide — On the cool side
3. Moist/humid hide — Anywhere in the tank, filled with damp sphagnum moss or paper towel

The moist hide is essential for healthy shedding. Without it, leopard geckos frequently have stuck shed on their toes and tail tip, which can cause circulation problems.

Hide Tips

• Hides should be snug — the gecko should touch the walls when inside
• Cork bark, half-logs, commercial reptile caves, and upside-down plant saucers all work
• If the gecko can be seen from outside while in the hide, it is too large

Lighting

UVB (Recommended)

Leopard geckos are crepuscular (active at dawn and dusk) and historically kept without UVB. However, research increasingly shows benefits:

• Use a low-output UVB bulb — T5 Arcadia ShadeDweller (7%) or ReptiSun 5.0
• Place above a mesh screen, over a portion of the tank (not the entire length)
• Provides vitamin D3 synthesis, improved calcium absorption, and more natural behavior
• If not using UVB, calcium with D3 supplementation becomes more important

Photoperiod

• 12 hours light / 12 hours dark — use a timer
• No colored bulbs at night — complete darkness is best
• Ambient room light is often sufficient if no UVB bulb is used

Humidity

• Overall tank humidity: 30-40% (dry environment)
• Moist hide humidity: 70-80% (localized)
• Too much ambient humidity can cause respiratory infections
• The moist hide provides the humidity leopard geckos need for shedding without raising overall tank humidity

Water and Feeding Dishes

• Water dish: Shallow, always available, changed daily
• Feeding dish: Smooth-sided to prevent feeder insects from escaping (for mealworms/BSFL)
• Calcium dish: A small dish of pure calcium powder (no D3) available at all times — leopard geckos will self-supplement

Decorations and Enrichment

• Flat rocks — Natural basking surfaces, retain heat
• Cork bark and branches — Low climbing opportunities and visual barriers
• Artificial or live plants — Add cover and visual enrichment (succulents, aloe — match arid theme)
• Background — A backdrop on 2-3 sides helps the gecko feel secure

Common Setup Mistakes

1. Only one hide — Three hides (warm, cool, moist) is the minimum
2. No moist hide — Results in chronic stuck shed, especially on toes
3. No thermostat — UTHs without thermostats cause belly burns
4. Red light at night — Disrupts sleep; use complete darkness or lightless heat
5. Tank too small — 20-gallon long is the minimum for adults, not the goal
6. Loose substrate for juveniles — Use paper towels or tile until the gecko is at least 6 inches

Conclusion

A proper leopard gecko tank setup provides a clear temperature gradient (90-95°F warm side to 75-80°F cool side), three hides (warm, cool, and moist), appropriate substrate, and optionally low-level UVB lighting. Keep the environment dry (30-40% humidity) with a localized humid hide for shedding. Every heat source must be thermostat-controlled. With this foundation, leopard geckos are easy to care for and can thrive for 15-20+ years.