Leopard gecko care: a complete keeper's guide

The leopard gecko (Eublepharis macularius) is the most popular pet gecko in the world, and the leopard gecko is one of the most commonly misunderstood in terms of the captive care. The leopard gecko that is kept in the small glass tank with the sand substrate, the single basking light, and the mealworm diet is the leopard gecko that is being kept in a way that is incompatible with the leopard gecko's biology, and the leopard gecko that is being kept in a way that is incompatible with the biology is the leopard gecko that is developing the chronic health problems (the metabolic bone disease, the sand impaction, the obesity, the shedding problems) that are the preventable consequences of the inappropriate care. The leopard gecko is a long-lived (15–20+ years in captivity), crepuscular, terrestrial gecko from the arid regions of Afghanistan, Pakistan, and India, and the leopard gecko requires a specific setup that matches the natural habitat. The owner who is reading this article is the owner who is willing to provide the specific setup, and the specific setup is the foundation of the gecko's health.

This article is going to walk you through the complete captive care of the leopard gecko — the enclosure (the size, the material, the ventilation), the heating (the temperature gradient, the basking spot, the night temperature), the lighting (the UVB, the photoperiod, the visible light), the substrate (the right substrates, the wrong substrates), the diet (the insects, the supplementation, the feeding schedule), the handling (the right way, the wrong way), the shedding (the humid hide, the stuck shed), the common health problems, and the four mistakes that turn the most popular pet gecko into a chronic problem. I am a herpetology-focused consultant, and the leopard gecko is one of the most common species I see in consultations, and the most common reason for the consultation is the inappropriate setup. The cases that go well share a common feature: the owner has understood the leopard gecko's biology, has provided the appropriate setup, and has committed to the long-term care. The cases that go poorly share a different common feature: the owner has kept the leopard gecko in the inappropriate setup, has ignored the chronic signs, and has produced the chronic health problems.

I want to be clear at the start: the leopard gecko is one of the easier pet reptiles to keep, but the leopard gecko is not a "beginner" pet that can be kept without any specific care. The leopard gecko requires the specific care, and the specific care is the framework below. The framework, applied with consistency, is the right prevention.

The enclosure: the size, the material, the ventilation

The leopard gecko enclosure should be:

The size. A 20-gallon long tank (30" x 12" x 12") is the minimum for a single adult, with a 40-gallon breeder tank (36" x 18" x 16") being the better choice. The leopard gecko is a terrestrial gecko, and the leopard gecko needs the horizontal floor space, not the vertical space. The 20-gallon long provides 360 square inches of floor space, the 40-gallon breeder provides 648 square inches, and the larger enclosure provides more space for the temperature gradient, the multiple hides, and the exercise.

The material. Glass (with a screen top) is the most common material, and the glass is appropriate for the leopard gecko (the glass is easy to clean, the glass is easy to heat, the glass allows the visual observation). The plastic enclosures (the PVC, the ABS) are also appropriate, and the plastic enclosures are lighter and retain the heat better. The wooden enclosures are appropriate for the leopard gecko, but the wooden enclosures require the sealing to prevent the moisture damage.

The ventilation. The screen top is the standard for the glass tank, and the screen top provides the ventilation that the leopard gecko needs (the leopard gecko is from the arid environment, and the leopard gecko needs the well-ventilated enclosure, not the humid enclosure). The screen top should cover most of the top, and the screen top should be secured (the leopard gecko is not a strong climber, but the screen top prevents the escape of the feeder insects).

The heating: the temperature gradient, the basking spot, the night temperature

The leopard gecko is ectothermic, and the leopard gecko requires the temperature gradient to thermoregulate. The right temperature:

The warm side (the basking spot). 88–92°F (31–33°C) at the level of the gecko's belly when the gecko is on the basking platform. The basking spot is provided by a heat source (a halogen basking bulb, a ceramic heat emitter, or a heat mat with a thermostat) on the warm side of the enclosure, and the basking spot is verified with a thermometer or a temperature gun at the gecko's level.

The cool side. 75–80°F (24–27°C) at the level of the gecko's belly when the gecko is on the cool side. The cool side is the unheated side of the enclosure, and the cool side is verified with a thermometer at the gecko's level.

The night temperature. 65–75°F (18–24°C). The night temperature can drop into the mid-60s°F in some homes, and the leopard gecko tolerates the night temperature drop. The heat source can be turned off at night, or the heat source can be maintained at a lower level (a thermostat set to 70°F) to provide the night temperature consistency.

The heat source options.

• The heat mat (the traditional choice). The heat mat (a flat, flexible heating element) is placed under the enclosure, on the warm side, covering 1/3 of the floor. The heat mat is controlled with a thermostat (essential, not optional, to prevent the overheating), and the heat mat provides the belly heat that the leopard gecko prefers. The heat mat is the traditional choice, but the heat mat does not provide the visible light or the UVB, and the heat mat is being replaced by the overhead heat in many modern setups.

• The overhead heat (the modern choice). The overhead heat (a halogen basking bulb, a deep heat projector, a ceramic heat emitter) is mounted above the warm side, and the overhead heat provides the heat, the visible light, and (with the right bulb) the UVB. The overhead heat is the more natural option (the leopard gecko basks in the sun in the natural habitat, and the sun is the overhead heat), and the overhead heat is the preferred option for the modern setup.

• The combination (the best option). The combination of the overhead heat (for the basking spot) and the heat mat (for the night-time heat, or for the supplementary heat) is the best option for the leopard gecko setup. The combination provides the natural basking heat during the day and the supplementary heat at night.

The lighting: the UVB, the photoperiod, the visible light

The leopard gecko is crepuscular, and the leopard gecko is active at dawn and at dusk, but the leopard gecko is also active at night. The leopard gecko's lighting needs are modest but real.

The UVB. The leopard gecko is a Ferguson zone 1 species, and the leopard gecko requires a low level of UVB. The right UVB setup is a 5–6% T8 or a 2% T5 fluorescent tube, mounted on the warm side of the enclosure, with the bulb placed 10–12 inches from the gecko's basking spot. The UVB is replaced every 6–12 months, and the UVB is verified with a UVB meter when in doubt. The leopard gecko that does not have the appropriate UVB is the leopard gecko that develops the metabolic bone disease, and the MBD is one of the most common health problems in the captive leopard gecko.

The photoperiod. The photoperiod is 10–12 hours of light per day, with the timer used to maintain the consistent photoperiod. The photoperiod mimics the natural day-night cycle, and the photoperiod supports the gecko's natural behavior. The leopard gecko that is exposed to the natural light (from a window) often benefits from the natural photoperiod, but the leopard gecko should not be exposed to the direct sunlight (the direct sunlight can overheat the enclosure).

The visible light. The visible light is provided by the same bulb that provides the heat (a halogen basking bulb) or by a separate daylight bulb. The visible light is necessary for the gecko's natural behavior, and the visible light supports the gecko's activity cycle.

The substrate: the right substrates, the wrong substrates

The substrate is one of the most commonly gotten wrong, and the substrate is the source of the most common health problem (the impaction) in the leopard gecko.

The right substrates.

• The reptile carpet (the artificial turf). The reptile carpet is the most popular substrate for the leopard gecko, because the reptile carpet is safe (no impaction risk), is easy to clean (the carpet is removed and washed), and is appropriate for the leopard gecko's natural behavior. The reptile carpet should be changed every 1–3 months, and the reptile carpet should be inspected for the loose threads (the loose threads can be ingested, and the loose threads can cause the impaction).

• The non-adhesive shelf liner (the static-cling vinyl). The non-adhesive shelf liner is another safe substrate for the leopard gecko, and the non-adhesive shelf liner is easy to clean and is appropriate for the leopard gecko's natural behavior. The non-adhesive shelf liner is similar to the reptile carpet in safety and convenience.

• The paper towel (the simple substrate). The paper towel is the simplest substrate for the leopard gecko, and the paper towel is appropriate for the quarantine, the hospital, or the simple setup. The paper towel is easy to replace, and the paper towel is safe (no impaction risk). The paper towel is not the most aesthetic, but the paper towel is the most practical for the temporary setup.

• The bioactive substrate (the naturalistic setup). The bioactive substrate is a mixture of organic materials (the coco fiber, the sphagnum moss, the play sand, the organic topsoil, the leaf litter) that supports the live plants, the microfauna (the isopods, the springtails), and the natural decomposition. The bioactive substrate is the most naturalistic and the most enriching for the leopard gecko, but the bioactive substrate is the most complex to set up and the most complex to maintain. The bioactive substrate is appropriate for the experienced keeper who is committed to the naturalistic setup.

The wrong substrates.

• The loose sand (the calcium sand, the play sand, the silica sand). The loose sand is the most dangerous substrate for the leopard gecko, and the loose sand is the substrate that is most commonly associated with the impaction. The leopard gecko that ingests the sand (the leopard gecko that is fed the mealworms on the sand, the leopard gecko that is licking the sand for the minerals) is the leopard gecko that is at risk of the intestinal impaction, and the impaction is a life-threatening emergency. The fix is the avoidance of the loose sand, and the use of one of the safe substrates above.

• The walnut shell, the gravel, the corn cob. The walnut shell, the gravel, and the corn cob are all substrates that can be ingested, and the substrates that can be ingested can cause the impaction. The fix is the avoidance of these substrates.

• The reptile bark, the reptile soil with the perlite or the vermiculite. The reptile bark and the perlite/vermiculite-containing soils can be ingested, and the perlite and the vermiculite are particularly dangerous if ingested (the perlite and the vermiculite expand in the GI tract). The fix is the avoidance of these substrates, or the use of the reptile-specific substrate that does not contain the perlite or the vermiculite.

The diet: the insects, the supplementation, the feeding schedule

The leopard gecko is an insectivore, and the leopard gecko requires a varied diet of the gut-loaded, supplemented insects.

The insects. The right insects for the leopard gecko:

• The crickets. The crickets are the most popular feeder insect, and the crickets are appropriate for the leopard gecko. The crickets are available in multiple sizes, the crickets are easy to gut-load, and the crickets are nutritionally appropriate when supplemented.

• The mealworms. The mealworms are a popular feeder insect, but the mealworms are high in fat and low in calcium, and the mealworms should be a supplement to the diet, not the staple. The mealworms are appropriate in moderation, but the mealworms are not appropriate as the only feeder insect.

• The dubia roaches. The dubia roaches are an excellent feeder insect, and the dubia roaches are more nutritionally appropriate than the crickets or the mealworms. The dubia roaches are higher in protein and lower in fat than the mealworms, and the dubia roaches are a good staple.

• The black soldier fly larvae (the BSFL, the Phoenix worms, the Calciworms). The BSFL are an excellent feeder insect, and the BSFL are naturally high in calcium (the BSFL do not require the calcium dusting). The BSFL are a good supplement to the diet.

• The silkworms, the hornworms, the butterworms (the occasional treat). The silkworms, the hornworms, and the butterworms are the occasional treat, and the treats are not the staple. The treats are high in moisture and in fat, and the treats are not appropriate as the only feeder insect.

The supplementation. The insects must be dusted with the calcium powder (the calcium carbonate or the calcium gluconate) and the multivitamin powder before the feeding. The supplementation is the foundation of the leopard gecko's nutrition, and the supplementation is the prevention of the metabolic bone disease.

• The calcium powder (without vitamin D3). The calcium powder is used at most feedings (4–5 feedings per week for the adult, every feeding for the juvenile). The calcium powder is the prevention of the calcium deficiency.

• The calcium powder with vitamin D3. The calcium powder with vitamin D3 is used 1–2 times per week (the vitamin D3 is added to the calcium to support the calcium absorption in the geckos that are not receiving the appropriate UVB).

• The multivitamin powder. The multivitamin powder is used 1–2 times per week, and the multivitamin powder provides the vitamins (the vitamin A, the B vitamins, the trace minerals) that the insects do not provide in sufficient quantities.

The feeding schedule.

• The juvenile (under 12 months). The juvenile is fed daily, with as many insects as the juvenile will eat in 10–15 minutes. The juvenile is in the rapid growth phase, and the juvenile requires the daily feeding to support the growth.

• The adult (over 12 months). The adult is fed every 2–3 days, with 5–10 appropriately-sized insects per feeding. The adult is in the maintenance phase, and the adult does not require the daily feeding. The overfed adult is the obese adult, and the obesity is one of the most common health problems in the adult leopard gecko.

The handling: the right way, the wrong way

The leopard gecko is one of the most handleable pet reptiles, and the leopard gecko tolerates the regular handling when the handling is done correctly.

The right way. The handling is done with the slow, gentle approach, with the hand approaching the gecko from the side (not from above, which can trigger the predator-avoidance response). The gecko is supported under the belly and the hind legs, and the gecko is held with the gentle but secure grip. The handling is kept short (5–10 minutes per session, especially for the new gecko), and the handling is done in a calm environment.

The wrong way. The handling is done with the sudden grab (the gecko is startled, the gecko drops the tail, the gecko is stressed). The handling is done with the tail grab (the gecko drops the tail, the gecko is stressed, the gecko is harder to handle in the future). The handling is done for too long (the gecko's body temperature drops, the gecko is stressed).

The gecko that is handled correctly is the gecko that is calm, that is interactive, that is a long-term companion. The gecko that is handled incorrectly is the gecko that is stressed, that is dropping the tail, that is harder to handle in the future. The right handling is the foundation of the long-term relationship.

The shedding: the humid hide, the stuck shed

The shedding in the leopard gecko has been covered in detail in the stuck shed article, but the key points:

• The leopard gecko needs a humid hide (a small, enclosed container with the damp sphagnum moss, the damp paper towel, or the damp coconut fiber) available at all times.

• The humid hide is the gecko's retreat for the shedding, and the humid hide provides the local humidity that the gecko needs to shed properly.

• The gecko that does not have a humid hide is the gecko that is at risk of the stuck shed, particularly in the toes, the tail tip, the eye caps.

• The safe intervention for the stuck shed is the sauna (the damp paper towel in the small container, in a warm area, for 15–30 minutes), followed by the gentle manipulation with the soft tools.

The common health problems

The common health problems in the captive leopard gecko, in summary:

• The metabolic bone disease (MBD). The calcium deficiency from the inadequate UVB or the inadequate calcium supplementation. The MBD produces the soft jaw, the bowed limbs, the tremors, the fractures. The fix is the appropriate UVB, the appropriate calcium supplementation, and the veterinary care for the advanced cases.

• The impaction. The intestinal obstruction from the ingested substrate (the sand, the walnut shell, the gravel). The impaction produces the lethargy, the anorexia, the inability to defecate. The fix is the safe substrate, the veterinary care for the impaction (the surgery in the severe cases).

• The obesity. The overfeeding and the under-exercise. The obesity produces the fatty liver disease, the shortened lifespan. The fix is the appropriate feeding schedule and the appropriate exercise.

• The respiratory infection. The bacterial infection from the inappropriate temperature, the inappropriate humidity, the chronic stress. The RI produces the wheezing, the mouth-breathing, the nasal discharge. The fix is the appropriate temperature, the appropriate veterinary care (the antibiotics).

• The shedding problems. The stuck shed, the retained eye caps, the retained shed on the toes. The fix is the appropriate humid hide, the safe intervention, the veterinary care for the severe cases.

• The parasites. The internal parasites (the coccidia, the pinworms, the flagellates) and the external parasites (the mites). The fix is the veterinary care, the appropriate quarantine, the appropriate hygiene.

The four mistakes that turn the most popular pet gecko into a chronic problem

Mistake 1: The sand substrate. The most common mistake. The owner uses the calcium sand or the play sand, the leopard gecko ingests the sand, the impaction develops, and the impaction is the life-threatening emergency. The fix is the safe substrate (the reptile carpet, the non-adhesive shelf liner, the paper towel, the bioactive substrate), and the avoidance of the loose sand.

Mistake 2: The inadequate UVB (or no UVB). The second most common mistake. The owner assumes the leopard gecko does not need the UVB (the leopard gecko is crepuscular, the leopard gecko "doesn't bask in the sun"), the owner does not provide the UVB, and the MBD develops. The fix is the appropriate UVB (the 5–6% T8 or the 2% T5), mounted appropriately, and the regular replacement.

Mistake 3: The overfeeding. The third mistake. The owner feeds the leopard gecko every day, the owner feeds the leopard gecko the mealworms as the staple, the owner feeds the leopard gecko the treats in excess, and the obesity develops. The fix is the appropriate feeding schedule (every 2–3 days for the adult, with the appropriate staple insects), the appropriate supplementation, and the avoidance of the overfeeding.

Mistake 4: The inadequate temperature gradient. The fourth mistake. The owner provides the heat mat under the entire enclosure, the owner does not provide the cool side, the leopard gecko cannot thermoregulate, and the leopard gecko's immune system is compromised. The fix is the temperature gradient (the warm side, the cool side, the night temperature), with the appropriate heat source and the appropriate thermostat.

The bottom line

The leopard gecko is one of the most popular pet reptiles in the world, and the leopard gecko is one of the most commonly mis-cared for. The appropriate care is the appropriate enclosure, the appropriate heating, the appropriate lighting, the appropriate substrate, the appropriate diet, the appropriate supplementation, the appropriate handling, and the appropriate monitoring. The inappropriate care is the small tank, the inappropriate heat, the missing UVB, the sand substrate, the mealworm-only diet, the overfeeding, and the rough handling. The appropriate care produces a long-lived, healthy leopard gecko. The inappropriate care produces a chronically sick leopard gecko with a shortened lifespan.

The owner who provides the appropriate care is the owner who has a leopard gecko that is thriving. The owner who provides the inappropriate care is the owner who has a leopard gecko that is suffering. The difference is the care. The care is the framework above. The framework, applied with consistency, is the right prevention.

The leopard gecko is a long-term commitment, and the leopard gecko is a commitment that pays off in the long-term relationship. The leopard gecko that is well-cared for is a leopard gecko that is active, that is engaging, that is a source of joy for the owner for 15–20+ years. The leopard gecko that is poorly cared for is a leopard gecko that is in a chronic state of suffering. The difference is the care. The care is the framework above. The framework, applied with consistency, is the right prevention.

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About the author

Amelia Sterling is a herpetology-literate clinician and consultant specializing in captive reptile husbandry, with a particular focus on the popular pet reptile species (the leopard gecko, the bearded dragon, the ball python, the corn snake) and the practical day-to-day realities of keeping the reptiles healthy. She has worked with private keepers, zoological collections, and rescue organizations across temperate North America, with a particular interest in the prevention of the common reptile health problems through the appropriate husbandry. She writes regularly on the practical interfaces between the captive care and the reptile's natural biology.