Leopard Gecko Complete Care Guide: From Arrival to Year One

The leopard gecko (Eublepharis macularius) has held the title of "best first reptile" for decades — and for good reason. It tolerates handling, has a calm temperament, never bites, blinks like a mammal, and stores fat in its tail, so even if you miss a feeding it will not fall apart overnight. But "easy" does not mean "no effort." This guide walks through the full first year in a timeline: what to prepare before it arrives, how to handle the first two weeks, the monthly feeding rhythm, and the mistakes most beginners make.

1. Pre-arrival enclosure setup

The most common beginner mistake is buying the gecko first and the equipment later. The correct order is the opposite: make the enclosure right, then bring the animal home. Minimum checklist: an enclosure of at least 24×16 inches (60×40 cm) — larger for adults — a heat mat or ceramic heat emitter, a thermostat (non-negotiable, see below), two or three hides, a water dish, calcium and vitamin powder, and reptile-safe substrate.

For substrate, paper towel or reptile carpet is the safest choice for juveniles — easy to monitor droppings and no ingestion risk. Adults can move to a loose, chemical-free soil mix. Avoid pine and cedar shavings entirely: the aromatic oils are harmful to a gecko's respiratory tract. Do not keep babies on sand — swallowed sand can cause a fatal gut blockage.

2. The temperature gradient: your gecko's lifeline

Leopard geckos are nocturnal, but that does not mean they do not need heat. What they need is not "one temperature for the whole tank" but a gradient they can choose from: cool zone 75–82°F (24–28°C), warm zone 82–88°F (28–31°C), basking spot 88–91°F (31–33°C), dropping to 70–75°F (21–24°C) at night. Attach the heat mat to one side of the tank floor so that side becomes the warm zone and the far side stays cool.

Precision matters more than "it feels about right." A cheap stick-on thermometer on the wall measures the wall, not the surface your gecko actually lies on. Use a digital thermometer with a probe placed on the warm-zone floor, paired with a thermostat. The thermostat is not optional — an unregulated heat mat can push the tank past 104°F (40°C) on a warm day, and overheating is the number one hidden killer of pet geckos.

3. First two weeks: settle in, don't touch

When your gecko arrives, resist the urge to handle it, feed it or hover over the tank. It has just traveled in a box and landed in a brand-new world; its first response is stress. The right approach: place it in the pre-warmed enclosure with a hide, and let it explore on its own for two to three days. Around day three, offer one or two small crickets or mealworms; if it refuses, try again the next day. The patience you show in those first two weeks decides how your gecko learns to read the smell of your hand.

During the settling period, watch three things: whether droppings are well-formed, whether the tail stays plump, and whether it rests normally curled inside its hide during the day. A suddenly thin tail, constant closed eyes, or weight loss are all warning signs.

4. Feeding rhythm and prey selection

Leopard geckos are insectivores. Staples are crickets, dubia roaches and mealworms, with waxworms as an occasional treat. The rules are simple: prey no wider than the gecko's head, an amount that is eaten within about 10 minutes, and leftover insects removed afterwards so they cannot harass the gecko at night. Juveniles eat daily or every other day; sub-adults every two days; adults two to three times a week. Fatty waxworms should appear at most once a week, or your gecko will become picky and overweight.

Calcium is the easiest thing to get wrong. Before every feeding, shake the insects in a small container of calcium powder ("dusting"). Adults need calcium two to three times a week and a D3 calcium or multivitamin about once a week. A gecko kept without UVB cannot synthesize vitamin D3 itself, so all D3 must come from food.

5. Shedding, waste and health checks

A leopard gecko sheds once or twice a month, usually overnight. Before shedding it turns pale and grey, slows down and loses its appetite — that is normal. Shedding needs adequate humidity: if the tank sits below 30% for long, old skin will stick around the toes and eyes. If you find stuck shed, soften it with a warm, damp cotton swab — never peel it off.

A daily health check takes 30 seconds: bright eyes, no red patches or wounds on the skin, a round tail, and droppings free of blood or odd smells. Geckos hide illness until it is advanced — by the time one stops eating, it has often been sick for days. Weigh your gecko once a month and log it; the weight curve is the most objective "is it growing normally" signal you have, and the Growth Tracker draws that curve for you.

6. The five most common first-year mistakes

1. No thermostat. Unregulated heating is the leading cause of death — and a thermostat costs about the same as a pizza.
2. Cohabitation. Leopard geckos are territorial. Two males — or a large and a small one — will fight, steal food and stress each other. One gecko per tank, full stop.
3. Handling too early. Frequent handling in the first two weeks leads to long-term stress and food refusal.
4. Mealworms only. Mealworms are high in shell and poorly balanced; a single-prey diet leads to malnutrition. Rotate prey types.
5. Skipping calcium. Calcium deficiency causes metabolic bone disease — soft jaw, deformed limbs — and the damage is irreversible.

Data in this guide is compiled from published care references and keeper practice. Every gecko is an individual — always go by the actual condition of your own animal.