Leopard Gecko Husbandry Guide

Practical, breed-specific care for leopard geckos: enclosure setup, belly-heat vs overhead heating, calcium/D3 supplementation, feeding schedules, common mistakes and when to see a vet.

Leopard Gecko Husbandry Guide

Leopard geckos (Eublepharis macularius) are one of the most commonly kept pet reptiles because of their manageable size, generally calm temperament, and relatively straightforward husbandry. However, they have specific, breed-related needs: they are terrestrial, crepuscular/nocturnal, require reliable belly heat, and need disciplined calcium and vitamin D3 management to prevent metabolic bone disease. This guide gives step-by-step, practical instructions for setting up and maintaining a healthy leopard gecko environment, plus common mistakes and clear signs that you need veterinary care.

Breed-specific considerations

• Terrestrial and ground-dwelling: leopard geckos do best in long, low enclosures rather than tall arboreal setups.
• Eyelids and nocturnal activity: they blink and have lids (unlike many geckos) and are most active at dusk/dawn; avoid very bright lighting.
• Thick tail for fat storage: tail health is a good indicator of nutritional status.
• Sensitive to impaction: loose substrates such as calcium sand or fine sand increase impaction risk.

Enclosure setup (step-by-step)

Heating: belly heat (UTH) vs overhead heat

Leopard geckos are terrestrial and absorb heat primarily through their bellies. This makes under-tank heating (UTH; heat mats or pads) the most effective and natural-feeling heat source.

• Under-tank heater (recommended): Place a thermostatically controlled UTH under one end of the terrarium to create a localized hotspot. Important: always use a reliable thermostat (not just a rheostat) to prevent overheating. Use a heat-conductive surface (ceramic tile or slate) between the mat and glass floor where possible to distribute heat.

• Overhead heat (not preferred as sole source): Ceramic heat emitters or basking bulbs create overhead radiant heat and raise ambient temperature. Overhead alone often fails to provide proper belly heat and can dry hides or create excessive vertical heat that geckos can’t utilize easily.

Feeding and supplementation (step-by-step)

Leopard geckos are insectivores. Feeding and supplementation are the single most important husbandry points to prevent metabolic bone disease (MBD).

Step-by-step feeding:

Supplementation schedule (clear, practical approach):

• Calcium without vitamin D3: dust feeder insects at every feeding (especially for juveniles).
• Calcium with vitamin D3: dust insects once weekly for adults and 2–3 times weekly for juveniles if you do NOT use UVB. If you provide a reliable low-level UVB, discuss D3 dosing with an exotics vet and reduce supplemental D3 frequency accordingly.
• Multivitamin: dust once weekly.

Hydration: Provide a shallow water dish with fresh water daily. Leopard geckos will drink and may soak occasionally; the humid hide provides additional moisture for shedding.

Cleaning and maintenance schedule

• Daily: spot-clean feces and uneaten insects; check water.
• Weekly: clean and refresh the humid hide and change sphagnum moss or paper towel; spot-clean substrate as needed.
• Every 4–6 weeks: full enclosure clean with reptile-safe disinfectant; replace substrate (if using loose or carpet), clean décor and hides thoroughly.
• Thermometer/hygrometer: check weekly and recalibrate or replace batteries as needed.

Common mistakes owners make

• Using loose substrates (sand, calcium sand) leading to impaction.
• Running UTH without a thermostat or using wattage controllers only — leads to overheating and burns.
• Relying solely on overhead heating — geckos need belly heat to digest properly.
• Skipping regular calcium dusting or incorrect D3 dosing (both under- and over-supplementation are harmful).
• Feeding only mealworms or superworms — poor nutritional variety; mealworms are high in chitin and lower in calcium.
• Too few hides and no humid hide — leads to chronic stress and shedding problems.
• Keeping enclosure too damp or too dry across the whole tank — leopard geckos need a dry general environment with a localized humid hide.

Signs of problems — when to seek professional help

Seek an exotic-pet veterinarian promptly if you observe any of these:

• Refusal to eat: juveniles not eating for 24–48 hours; adults not eating for 7–10 days (sooner if losing weight).
• Weight loss or a thin tail: loss of stored fat in the tail is an early sign of poor nutrition or illness.
• Tremors, twitching, or limb weakness: classic signs of metabolic bone disease or severe calcium deficiency.
• Swollen mouth or jaw (thickened jaw): potential metabolic bone disease or infection.
• Incomplete/retained shed, especially on digits and eyes, persisting more than 24–48 hours after use of humid hide.
• Respiratory distress: open-mouth breathing, wheezing, nasal discharge — possible respiratory infection.
• Runny stool, persistent diarrhea, or dark/black stools — could indicate parasites or systemic disease.
• Prolapse, severe injuries, deep wounds, persistent bleeding, or obvious fractures.

Product recommendations (categories)

• Under-tank heater (UTH/heat mat) with a digital thermostat (dual-probe recommended).
• Digital thermometer/hygrometer with probes for warm and cool zones.
• Ceramic tile, slate, or reptile-safe tiles for substrate.
• Three hides (warm, cool, moist) sized for juveniles/adults.
• Damp moss or sphagnum boxes for humid hides.
• Calcium powder without D3, calcium + D3 powder, and a reptile multivitamin powder.
• Shallow water dish and sturdy feeding dishes (or plate for messy feeders).
• Reptile-safe disinfectant and cleaning brushes.
• Optional: low-output UVB fixture (2.0) with correct mounting and recommended distance.

Troubleshooting quick tips

• If your gecko refuses food after an enclosure change, give it 3–7 days while ensuring proper temps and a quiet environment; contact a vet earlier for juveniles or rapid weight loss.
• If shed is stuck on toes, place the gecko in a shallow warm soak (5–10 minutes) in dechlorinated water and massage gently; use the moist hide long-term to prevent recurrence.
• For suspected impaction (constipation, lethargy, swollen abdomen), stop feeding, maintain gentle heat, and contact your exotics vet — do NOT attempt home laxatives without vet guidance.

Key takeaways

• Use a long, low enclosure (20 gal+ for adults) with a clear thermal gradient: hotspot 88–92°F and cool side 75–80°F.
• Prioritize under-tank heating (UTH) controlled by a reliable thermostat for natural belly heat; overhead heat can supplement but shouldn’t be the primary belly-heat source.
• Provide three hides (warm, cool, humid) and maintain a generally dry enclosure with a localized high-humidity hide for shedding.
• Feed gut-loaded insects; juveniles eat daily, adults every 2–3 days. Dust insects with calcium without D3 at most feedings; add calcium + D3 1–2 times weekly if not using UVB, plus a weekly multivitamin.
• Avoid loose substrates to cut impaction risk. Spot-clean daily and deep-clean every 4–6 weeks.
• Watch for signs of metabolic bone disease, retained shed, respiratory issues, and prolonged anorexia — contact an exotic-pet veterinarian promptly.

• Association of Reptilian and Amphibian Veterinarians (ARAV) husbandry recommendations: https://arav.org

Frequently Asked Questions