What do I need to start keeping reptiles?

An appropriately sized enclosure, the right heating, a digital thermometer, UVB lighting for most species, two hides, a water dish, species-appropriate substrate, feeder insects, and calcium plus a multivitamin. Set everything up and stabilize the temperatures for 24-48 hours before you buy the animal.

What is the best first reptile?

Bearded dragons are the top beginner lizard for interaction; leopard geckos are the simplest gecko; crested geckos are the easiest reptile overall (room temperature, powdered diet); and corn snakes are the best beginner snake. Pick by how much daily care and handling you want.

Should I set up the enclosure before buying the reptile?

Always. Build the enclosure, run the heat and lights, and confirm the temperatures hold steady for 24-48 hours before the animal comes home. A reptile dropped into an unstable, untested enclosure is the most common avoidable beginner mistake.

How often do I replace a UVB bulb?

Every 6-12 months, even though the bulb still produces visible light. UVB output decays well before the bulb burns out, so keepers who wait for it to die are running their animal under a dead UVB source for months. Mark the install date on the bulb.

How soon should I handle a new reptile?

Give it 3-5 days to settle in first, then start with short, calm sessions. Offer food after the first 24-48 hours of settling, and begin calcium supplementation from the very first feeding.

← All exotic animals

Geckos

How to Start Keeping Reptiles: A Beginner's Checklist

By Matt Goren · Updated June 26, 2026

I've set up a lot of first enclosures, both my own and for friends I've talked into the hobby, and the pattern is always the same: the people who succeed do the boring prep before the animal arrives. Getting your first reptile is exciting, but the order of operations matters enormously. This checklist walks through everything you need before, during, and after bringing your new animal home.

Step 1: Choose your species

Not all reptiles are equal for beginners. Start with a hardy, well-established species rather than something rare or finicky. My quick recommendations, covered in depth in the best reptiles for beginners guide:

Best beginner lizard: bearded dragon, personable, hardy, and handleable from day one
Simplest gecko: leopard gecko, a strict insectivore on a simple heat setup
Easiest reptile overall: crested gecko, room temperature and a powdered diet
Best beginner snake: corn snake, calm, reliable feeder, hundreds of morphs

Pick based on how much daily involvement you want. A crested gecko needs almost nothing; a bearded dragon wants daily interaction and a fuller equipment list.

Step 2: Set up before you buy

Never buy the animal first. Build the enclosure, dial in the temperatures, and let it run for 24-48 hours to confirm it holds stable before adding your reptile. Here's the gear list:

Enclosure: sized for your species; 40-75+ gallons for most lizards, 20-40 for geckos, 40 gallons for a corn snake
Heating: basking lamp, under-tank heat mat, or ceramic heat emitter depending on species, always on a thermostat
Thermometer: a digital probe thermometer, not the adhesive dial strips, which are wildly inaccurate; ideally check the basking surface with a temp gun too
UVB lighting: a linear T5 HO bulb for diurnal baskers like bearded dragons and chameleons; lower-level UVB is increasingly recommended even for nocturnal geckos, though not strictly required
Hides: at least two, one on the warm side and one on the cool side, so the animal never has to choose between feeling safe and thermoregulating
Water dish: for species that drink from standing water
Substrate: species-appropriate; plain paper towel is the safest choice for beginners, with bioactive reserved for once you have the basics down

Get the temperature gradient right

The single most important husbandry concept is the thermal gradient: a warm end and a cool end so a cold-blooded animal can move to regulate its own body temperature. Confirm both the basking temperature and the cool-side temperature with your digital thermometer before the animal arrives. Typical targets run a basking zone of roughly 95-110°F for baskers and a cool side in the high 70s to low 80s, but check your specific species.

Step 3: Stock up on feeders

Have feeders on hand before your animal arrives. For insect-eaters, four feeders cover almost everything:

Discoid roaches are the daily protein staple: silent, odorless, and unable to climb smooth walls, so they won't escape into your home
Silkworms are a soft, low-fat, high-moisture supplement most reptiles love
Black soldier fly larvae (BSFL) are the genuinely calcium-rich feeder, the one insect that isn't phosphorus-heavy, which makes them valuable for bone health
Hornworms are a high-moisture hydration treat that tempts reluctant eaters, but too low in nutrition to be a staple

One honest correction to a lot of beginner advice: nearly every feeder insect is phosphorus-heavy relative to calcium, so dusting with plain calcium at most feedings is doing real nutritional work, not just box-checking. BSFL are the standout exception. You'll also want a calcium + D3 powder and a multivitamin. Stock all of it from live feeder insects, and for the cleanest staple, see keeping discoid roaches alive.

Step 4: Bring your reptile home

The first few days are about letting the animal acclimate, not bonding:

Minimize handling for the first 3-5 days
Offer food after 24-48 hours of settling in
Re-verify that temperatures are in the correct range with the animal in residence
Begin calcium supplementation from the very first feeding

Step 5: Establish a routine

Once your reptile is eating and settled, build the habits that keep it healthy long-term:

Feed on a schedule appropriate to species and age (babies eat daily; many adults eat less often)
Dust with calcium + D3 on a consistent supplement schedule
Spot-clean the enclosure daily and do a deeper clean monthly
Replace the UVB bulb every 6-12 months and mark the install date
Monitor body condition: weight, activity level, appetite, and shed quality are your early-warning signs

Track those condition markers over time, because a slow change in weight or appetite is usually the first sign something in the husbandry needs adjusting. For health concerns beyond husbandry, the Merck Veterinary Manual has a solid, non-commercial reptile reference section.

Welcome to the hobby. It's one of the most rewarding animal-keeping experiences out there, and a careful first week sets up years of easy keeping.

Next steps: pick your animal in the best reptiles for beginners guide, or master the staple feeder in keeping discoid roaches alive.

More geckos