Why Leopard Geckos Are Everyone's Favorite First Reptile
There's a reason leopard geckos have been the go-to recommendation for new reptile keepers for decades. They're hardy enough to forgive rookie mistakes, small enough to house comfortably in an apartment, and personable enough to actually feel like a pet — not just a display animal sitting behind glass.
I got my first leopard gecko, a normal-morph female I named Pixel, about eight years ago. She's still going strong, still gets excited when she sees the mealworm container, and still gives me that slow blink that gecko keepers know means "I tolerate your existence." These animals have real personality once you learn to read their body language.
This guide covers everything you need to give your leopard gecko a great life — from enclosure setup to diet to common health issues. Let's get into it.
Enclosure Setup: Getting the Basics Right
The enclosure is the single most important investment you'll make for your leopard gecko. Get this right, and everything else becomes much easier.
Tank Size
A 20-gallon long tank (30" x 12" x 12") is the widely accepted minimum for a single adult leopard gecko. Personally, I'd recommend going bigger if you have the space — a 40-gallon breeder gives them more room to explore and makes it easier to create a proper temperature gradient. Front-opening terrariums are a bonus because approaching from the front is less startling than a hand coming from above.
Substrate
This is one of the most debated topics in leopard gecko care. Here's my take after years of keeping them:
- Paper towel: The safest option, especially for juveniles. Easy to clean, zero impaction risk. Not pretty, but functional.
- Tile (slate or ceramic): My personal favorite. Easy to clean, looks great, helps file down nails naturally, and conducts heat from under-tank heaters well.
- Topsoil/sand mix (70/30): A naturalistic option that many experienced keepers use for adults. The key is that the soil holds the mix together, preventing the gecko from ingesting loose particles. Only use this for healthy adults who are feeding and shedding normally.
- Pure sand — avoid it. Loose sand, especially calcium sand, poses a real impaction risk. It's not worth it.
Hides
Leopard geckos need at least three hides:
- Warm hide: Placed over the heat source on the warm side.
- Cool hide: On the opposite, cooler end of the tank.
- Moist hide: A hide filled with damp sphagnum moss or paper towel, which helps with shedding. Place this on the warm side or in the middle.
Hides should be snug — leopard geckos feel more secure in a tight space where their body touches the walls and ceiling. A hide that's too large won't provide the same sense of security.
Heating: The Foundation of Good Health
Leopard geckos are ectotherms, meaning they regulate their body temperature using external heat sources. Getting the temperature gradient right is critical for digestion, immune function, and overall well-being.
Temperature Goals
- Warm side floor temperature: 88-92°F (31-33°C)
- Cool side: 73-78°F (23-26°C)
- Nighttime: Can drop to 65-70°F (18-21°C) — no supplemental heat needed unless your house gets colder than this.
Heat Sources
Under-tank heater (UTH) connected to a thermostat is the classic setup, and it works. The thermostat is non-negotiable — an unregulated UTH can reach temperatures well above 100°F, which can burn your gecko through the substrate. I use and recommend digital thermostats with a probe placed directly on the substrate surface above the heat mat.
Deep heat projectors (DHPs) and ceramic heat emitters (CHEs) are overhead options that work well too, especially in deeper enclosures where a UTH can't adequately heat through thick substrate. These also must be on a thermostat.
Avoid heat rocks entirely. They're notorious for causing thermal burns.
Lighting: The UVB Question
For years, the common advice was that leopard geckos don't need UVB lighting because they're crepuscular (active at dawn and dusk). That advice is outdated.
Recent research and keeper experience strongly suggest that leopard geckos benefit from low-level UVB — specifically a 5-7% UVB bulb like the Arcadia ShadeDweller or Zoo Med T5 5.0. UVB allows them to synthesize vitamin D3 naturally, which improves calcium metabolism and bone health.
You don't need anything intense — a low-output UVB tube that covers about half the enclosure, on for 10-12 hours a day, is perfect. Make sure there are plenty of shaded areas so the gecko can choose its exposure level.
Even with UVB, continue dusting feeder insects with calcium and D3 supplements as a safety net.
Diet: What to Feed and How Often
Leopard geckos are insectivores. They eat bugs — that's it. No fruits, no vegetables, no commercial pellets. Just properly gut-loaded, calcium-dusted insects.
Best Feeder Insects
- Mealworms: The staple for many keepers. Easy to store, easy to offer in a dish. Some geckos can eat them exclusively and do just fine.
- Dubia roaches: Nutritionally superior to mealworms — higher in protein, lower in fat. If you can get over the "roach" factor, these are excellent.
- Crickets: Good nutrition but annoying to keep. They're loud, they smell, and any uneaten crickets left in the tank can nibble on your gecko. Remove uneaten crickets after 15 minutes.
- Black soldier fly larvae (nutrigrubs): Naturally high in calcium. A great supplemental feeder.
- Waxworms and superworms: High in fat — use these as occasional treats only, not staples.
Feeding Schedule
- Juveniles (under 6 months): Feed daily. Offer as many appropriately-sized insects as they'll eat in 15 minutes.
- Sub-adults (6-12 months): Feed every other day.
- Adults (12+ months): Feed 2-3 times per week. Obesity is a real problem in captive leopard geckos, so don't overfeed.
Supplements
Dust feeder insects with:
- Plain calcium (no D3): Every feeding.
- Calcium with D3: Once or twice a week (less if you're providing UVB).
- Multivitamin: Once a week.
Keep a small dish of plain calcium in the enclosure at all times. Many leopard geckos will lick it as needed to self-regulate their intake.
Handling: Building Trust Takes Time
When you first bring your leopard gecko home, leave it alone for 5-7 days. I know it's tempting to hold your new pet immediately, but they need time to settle in. Handling a stressed gecko leads to tail-dropping, biting, and a much longer taming process.
After the settling period, start with short sessions — 5 minutes at a time. Scoop them up gently from below (never grab from above, which mimics a predator). Let them walk across your hands. Over time, most leopard geckos become completely comfortable with regular handling.
Signs of stress to watch for: rapid tail wagging (this is a defensive behavior, not happiness), vocalizing (barking or squeaking), and trying to jump off your hands repeatedly.
Common Health Issues
Leopard geckos are generally healthy animals, but there are a few issues to watch for:
Stuck Shed
The most common problem. If humidity in the moist hide is too low, shed skin can get stuck around the toes, tail tip, or eyes. Stuck shed on the toes can constrict blood flow and cause toe loss. Check your gecko after every shed and provide a warm, damp soak if you see retained skin.
Metabolic Bone Disease (MBD)
Caused by insufficient calcium and/or vitamin D3. Signs include rubbery jaw, bent limbs, tremors, and difficulty walking. MBD is preventable with proper supplementation and UVB. If you suspect MBD, see a reptile vet immediately — early treatment can reverse the damage.
Impaction
A digestive blockage, often from ingesting loose substrate or feeding insects that are too large. Signs include lethargy, loss of appetite, and a swollen belly. Mild cases may resolve with a warm bath and gentle belly massage, but persistent symptoms require a vet visit.
Parasites
Crypto (Cryptosporidium) is the big one in leopard geckos. It causes chronic weight loss, stick tail (a visibly thin tail), and regurgitation. If you notice these symptoms, quarantine the gecko and get a fecal test from a reptile vet. Crypto is highly contagious and currently has no reliable cure.
Final Tips From a Long-Time Keeper
A few things I wish someone had told me when I started:
- Buy the thermostat before the heat mat. Temperature regulation is the most important piece of equipment in the enclosure.
- Don't stress about morphs. A $30 normal leopard gecko is just as wonderful as a $300 designer morph.
- Keep a simple care log — note feeding days, sheds, and weight. It makes it much easier to spot health issues early.
- Join a leopard gecko community online. Reddit's r/leopardgeckos and various Facebook groups are full of experienced keepers willing to help.
Leopard geckos are genuinely rewarding pets. They live a long time, they develop real personalities, and they're just fascinating to observe. Give them the right setup, feed them well, and you'll have a healthy, happy gecko for years to come.