Leopard Gecko

Is a leopard gecko right for you?

The leopard gecko (Eublepharis macularius) is one of the most frequently recommended starter reptiles thanks to its small size, calm nature and relatively simple set-up. Adults usually measure 20-25 cm including the tail. But a small animal is not a small responsibility: with good care it can live 10 to 20 years, and it eats live insects.

Ask yourself honestly: will you be able to source and dust live insects several times a week for close to twenty years?

Before you adopt

A healthy leopard gecko has bright eyes and a plump tail. The tail is a fat store; a thin, "stick-like" tail can signal weight loss or cryptosporidiosis. If you see retained skin on the toes, a soft jaw, tremors or diarrhoea, do not take that animal. If you already keep geckos, quarantine the newcomer for several weeks and have a faecal test done.

Legal status: The leopard gecko is not listed in the CITES appendices, so it is widely kept, but many countries still require import documentation for reptiles (in Turkey, for example, the General Directorate of Nature Conservation and National Parks issues conformity certificates even for non-CITES species). Check local rules and buy from a seller who can show where the animal came from. Also look at rehoming listings for adults needing a home.

Vivarium set-up

Size

• The RSPCA's minimum for one adult is 60 cm long x 30 cm deep x 40 cm high. A larger vivarium (for example 90 cm) makes the heat gradient easier to build and gives more room to explore.
• It is a ground-dwelling species; floor area matters more than height. The lid must lock.

The heat gradient (the most critical setting)

The RSPCA gives a night minimum of 18 °C, while VCA names 21 °C as the lowest tolerable. Whether you heat with a ceramic lamp or a heat mat under part of the floor, it must be connected to a thermostat; an unregulated mat causes belly burns. Do not use heat rocks. In hot summers room temperature can exceed 30 °C, so check with a thermometer that the cool side really stays cool.

Humidity Keep ambient humidity around 30-40%. In addition, provide a "humid hide" filled with slightly damp moss or coconut fibre; it prevents retained skin on the toes and tail tip, especially during shedding.

UVB: a balanced view Because the species is nocturnal, for many years UVB was considered unnecessary, and many individuals have lived healthily getting vitamin D3 only from supplements. In a Wageningen University study on hatchlings, the group given low-level UVB had higher blood levels of a vitamin D3 metabolite, but growth was similar in both groups and the researchers concluded that dietary D3 was sufficient for the first six months. The RSPCA and VCA, on the other hand, recommend low-level UVB. Practical advice:

• If you use UVB, choose a low-output (2-5%) tube; according to the RSPCA the UV index should be about 0.7 in the basking zone, falling to zero in the shade.
• Hides where the gecko can escape the light completely are essential; albino morphs are more light-sensitive.
• If you provide UVB, reduce D3 supplements; if you do not, never skip calcium with D3.
• Replace the tube every 6-12 months; 12 hours on, 12 hours dark.

The substrate and sand debate VCA and Chicago Exotics warn that fine sand, corncob and walnut shell can cause intestinal impaction when swallowed; calcium sand is also risky. The RSPCA, by contrast, suggests a roughly 50/50 mix of organic soil and sand. The safest start: kitchen paper or tiles for juveniles; if you use a soil-sand mix for an adult, feed from a dish and keep temperatures and supplements right.

Decor At least three hides: warm side, cool side and the humid hide. A shallow water dish and low climbing rocks.

Feeding

The leopard gecko is strictly insectivorous; it does not eat fruit or vegetables.

Juvenile and young (0-12 months)

• Daily or every other day, as many insects as it will eat in 10-15 minutes

Adult (12+ months)

• 2-3 times a week or every other day; adjust by how full the tail is. Obesity is common in this species.

Suitable insects: crickets, dubia roaches, silkworms, black soldier fly larvae, small locusts. Mealworms and superworms can be staples but variety is essential; waxworms are very fatty and should stay a treat.

Insect size: no larger than the space between the eyes.

Supplements (obligatory)

• Dust insects with calcium powder immediately before feeding.
• Juveniles: calcium with D3 about 3 times a week, a multivitamin once a week.
• Adults: calcium 1-2 times a week, a multivitamin twice a month.
• VCA recommends keeping a shallow dish of calcium powder in the enclosure.
• Feed the insects a good diet for at least 24 hours beforehand (gut loading). Never offer insects caught at home.

Health and lifespan

Sources give a lifespan of 10-20 years; well-kept individuals are known to exceed 20.

Signs that mean a vet visit:

• Rapid thinning of the tail, weight loss, appetite loss lasting more than a few weeks
• Diarrhoea, no droppings, swollen belly
• Soft jaw, bowed legs, tremors
• Darkening or retained skin on toes or tail tip
• Eyes kept closed or swollen

Problems common in the species:

• Metabolic bone disease: Calcium or D3 deficiency. Soft jaw, bent legs, weakness. Can improve if caught early.
• Cryptosporidiosis ("stick tail"): An intestinal parasite. Marked weight loss, diarrhoea, a thinning tail. According to the MSD Veterinary Manual, treatments are largely ineffective and it spreads between animals; isolate and see a vet at the first suspicion.
• Impaction: Unsuitable substrate or oversized prey. No droppings, swollen belly, weak hind legs.
• Shedding problems: In low humidity, retained skin on the toes cuts off blood flow and can cost toes.
• Vitamin A deficiency: Swollen eyelids, poor sheds. Prevented by balanced supplements and gut loading.
• Egg binding (females): Constant digging, restlessness and appetite loss warrant a vet visit.

Salmonella: Reptiles can carry Salmonella. Wash your hands with soap after every contact and never clean equipment in the kitchen sink. Children under 5, adults over 65 and people with weakened immunity are at higher risk.

Handling and behaviour

1. Do not touch for the first 1-2 weeks. Just feed and observe.
2. Approach from below. Grabbing from above feels like a predator; place your hand in front and let the gecko walk on.
3. Never hold it by the tail. When frightened it can drop its tail (autotomy). The tail regrows in about 1-2 months but is shorter and differently patterned. It also means losing its fat reserve, so keep the substrate clean and feeding good during that time.
4. Short sessions: start with 5-10 minutes, preferably in the evening when it is active.

Squeaking and gaping are stress signals; they are common in juveniles and fade with time. Eating its shed skin is normal.

More than one animal: The RSPCA recommends keeping leopard geckos alone. Two males must never share; keeping a male with a female puts the female under constant breeding strain.

History and life in the wild

The leopard gecko is native to the dry, rocky regions of Afghanistan, Pakistan, north-western India and Iran. It shelters in rock crevices by day and hunts insects at dusk. Unlike most geckos it has eyelids and lacks sticky toe pads, so it cannot climb glass. The fat-storing tail is an adaptation to lean seasons.

The pet population is maintained by captive breeding, and many colour morphs have been developed. Some morphs carry health problems: the "enigma" morph is associated with an inherited neurological disorder with signs such as circling, poor balance and seizures. When choosing a morph, put health before looks.