How big of a tank does a leopard gecko actually need?

A single adult leopard gecko needs a minimum floor footprint of about 20 gallons (roughly 30 by 12 inches), though many keepers and reptile veterinarians recommend 36 by 18 inches or larger once the animal is fully grown, since these lizards are ground-dwelling and use horizontal space far more than vertical height (Merck Veterinary Manual, 2023). The tank should include at least three hides — a warm hide over the heat source, a cool hide on the opposite end, and a humid hide lined with damp sphagnum moss to support shedding — because a gecko that can't thermoregulate or find a secure hiding spot is a chronically stressed one.

Substrate choice matters more than most first-time owners expect. Loose sand and calcium-sand products marketed specifically for leopard geckos carry a documented risk of intestinal impaction if ingested during feeding, particularly in juveniles with developing digestive tracts, so many exotics veterinarians recommend reptile carpet, paper towels, or a bioactive soil-and-leaf-litter mix instead for young or underweight animals (Association of Reptilian and Amphibian Veterinarians, 2021).

What temperature and lighting setup keeps a leopard gecko healthy?

Leopard geckos are ectotherms native to the rocky semi-arid scrubland of Afghanistan, Pakistan, Iran, and northwestern India, so their enclosure needs a distinct thermal gradient rather than one uniform temperature (Merck Veterinary Manual, 2023). The warm side basking surface should sit between 88 and 92 degrees Fahrenheit, typically achieved with an under-tank heat mat or a low-wattage overhead heat bulb, while the cool side should drop to 70 to 75 degrees Fahrenheit; nighttime temperatures can safely fall into the mid-60s without added heat in most homes.

Although leopard geckos are crepuscular and don't bask in direct sun the way many lizards do, current guidance from reptile veterinary specialists favors providing low-level UVB lighting (around 2-6% output) on a 12-hour cycle, since UVB exposure supports natural vitamin D3 synthesis and reduces total reliance on dietary supplementation for calcium metabolism (Association of Reptilian and Amphibian Veterinarians, 2021). A digital thermometer with a probe — not a stick-on dial gauge — is the only reliable way to confirm these numbers, since ambient room temperature readings routinely miss hot spots by 10 degrees or more.

What do leopard geckos eat, and how often should they be fed?

Leopard geckos are strict insectivores that do not eat vegetables or fruit in the wild or in captivity, and their diet should center on gut-loaded crickets and mealworms, with occasional waxworms or dubia roaches offered as higher-fat treats rather than staples (Merck Veterinary Manual, 2023). Juveniles under a year old typically need daily feedings of appropriately sized insects — roughly the width of the gecko's head — while healthy adults do well on feedings every other day, since overfeeding fatty prey items like waxworms is a common cause of obesity in captive geckos.

Every feeder insect should be dusted with a calcium powder (with vitamin D3 for geckos kept without UVB lighting) at most feedings, and a separate calcium-only dish should stay available in the enclosure at all times, because inadequate calcium relative to phosphorus intake is the single most common driver of metabolic bone disease in pet lizards (Association of Reptilian and Amphibian Veterinarians, 2021). A shallow, sturdy water dish should be refreshed daily even though geckos drink relatively little, since standing water also helps maintain local humidity near the humid hide.

Why is my leopard gecko's tail shaking, thinning, or falling off?

Leopard geckos store fat and water reserves in their tails, so a visibly thin, shriveled tail is one of the earliest and most reliable signs that a gecko isn't eating enough or is fighting an underlying illness such as a parasite load or metabolic bone disease, and it warrants a weight check and veterinary exam rather than just more feeder insects (Merck Veterinary Manual, 2023). Tail shaking or vibrating, on the other hand, is typically a stress or territorial display rather than a medical sign.

Like many lizard species, leopard geckos can autotomize — voluntarily detach — their tail when grabbed or threatened by a predator, and owners should never pick a gecko up by the tail for this reason. The stump usually stops bleeding within minutes and the tail regrows over about 30 days, but the regenerated tail is typically shorter, smoother-scaled, and less fat-storage-capable than the original, which is one more reason to avoid handling stress in the weeks after a tail loss (Merck Veterinary Manual, 2023).

What's the difference between normal shedding and a stuck shed?

Leopard geckos shed their skin in patches every few weeks as juveniles, tapering to roughly once a month or less as adults, and healthy geckos often eat their own shed skin, which is normal behavior rather than a sign of illness. Retained shed — skin that doesn't come off cleanly, especially around the toes, eye caps, or tail tip — is one of the more common minor health issues in captivity and is almost always tied to insufficient humidity in the enclosure's humid hide (Association of Reptilian and Amphibian Veterinarians, 2021).

A humid hide packed with damp sphagnum moss or coconut fiber, kept at 70-80% local humidity, gives the gecko somewhere to soften a shed on its own schedule; the overall room humidity around the rest of the tank should stay lower, around 30-40%, since chronically damp substrate contributes to skin and respiratory infections. If retained shed constricts circulation around a toe or the tail tip and doesn't resolve with a few days of humid-hide access and gentle warm-water soaks, it needs veterinary attention to prevent tissue death.

Do leopard geckos need vaccines or regular vet checkups?

Leopard geckos don't require vaccinations, but the American Veterinary Medical Association and reptile veterinary specialists still recommend an initial wellness exam within the first couple of weeks of ownership and annual checkups afterward, including a fecal parasite screen, since reptiles are prone to hiding illness until it's advanced (American Veterinary Medical Association, n.d.). Not every general small-animal practice treats reptiles, so it's worth confirming a clinic has genuine exotics experience — ideally a veterinarian who is a member of the Association of Reptilian and Amphibian Veterinarians — before an emergency forces the search.

Routine home monitoring matters just as much as vet visits: weighing the gecko on a gram scale monthly and tracking body condition (a healthy adult typically weighs 45-65 grams, though this varies by individual and morph) helps catch slow weight loss long before it becomes visible as a thinning tail (Merck Veterinary Manual, 2023). Keeping a simple log of feeding amounts, sheds, and fecal appearance makes it much easier to describe a problem accurately if a vet visit becomes necessary.

Can leopard geckos live with other geckos, and how should they be handled?

Leopard geckos are largely solitary and can be territorial; two males housed together will often fight, sometimes seriously injuring or killing one another, so cohabitation is generally discouraged except in carefully monitored female-only groups with ample hides and space to avoid competition over basking and feeding spots (Merck Veterinary Manual, 2023). Even compatible females should have separate feeding stations to prevent food-guarding stress.

Leopard geckos are known for tolerating gentle handling better than many reptile species, which is part of their appeal for first-time keepers, but new geckos should be given one to two weeks to settle into a new enclosure before regular handling begins. Handling sessions are best kept short, supported from underneath rather than grabbed from above, and always without touching the tail, since even a well-adjusted gecko may drop its tail under sudden pressure.