Corn Snake Care Sheet: Tank Size, Temperature, Feeding & Handling

Corn snakes are the classic first snake: hardy, curious, easy to handle and reliable eaters.

Updated November 2026 · By the ReptiGuide team

Orange and red corn snake on a branch
Adult size3–5 ft (90–150 cm)
Lifespan15–20+ years
Warm side85–90°F (29–32°C)
Cool side72–78°F (22–26°C)
Humidity40–60%
Min enclosure (adult)4×2×2 ft
UVBOptional, low-level
DietFrozen-thawed mice

Is a corn snake right for you?

Corn snakes (Pantherophis guttatus) are native to the southeastern United States. They're slender, active, rarely defensive once settled, and come in a huge range of color morphs. They feed reliably on frozen-thawed mice and tolerate small husbandry mistakes better than most species, which is why they're so often recommended as a first snake.

Corn snakes are also expert escape artists, so a secure enclosure isn't optional.

Enclosure

Snake Enclosure
Hatchling 10–20 gallon tub or terrarium
Juvenile 20–40 gallons
Adult 4×2×2 ft minimum

Corn snakes are active explorers and good climbers, so give them branches and some height as well as floor space. Provide at least two hides (warm and cool), plus cover from plants and cork bark. Check every vent, lid and door gap: if a gap fits the snake's head, the snake will get out.

Heating

An overhead heat source (halogen bulb or deep heat projector with a guard) or a heat mat under one end works. As always, use a thermostat and check temperatures with a digital thermometer.

Lighting

UVB isn't strictly required for corn snakes, but low-level UVB with a regular 12-hour day/night cycle is increasingly recommended and can encourage natural behavior. Provide plenty of shade if you use it.

Humidity

Corn snakes do well at 40–60% humidity, which most homes provide naturally. Keep a water bowl large enough for soaking, and raise humidity a little (e.g. a damp moss hide) if you see stuck shed.

Substrate

Aspen shavings are a classic choice because they hold burrows well and suit corn snakes' moderate humidity. Coconut husk, cypress mulch and soil mixes are also good. Avoid cedar and pine, which release oils harmful to reptiles.

Feeding

Feed frozen-thawed mice, warmed to around body temperature and offered with tongs.

Age Prey Frequency
Hatchling Pinky mouse Every 5–7 days
Juvenile Fuzzy to hopper mouse Every 7–10 days
Adult Adult mouse (sized to the snake's widest point) Every 10–14 days

Prey should be no wider than the widest part of the snake's body. Don't handle for 48 hours after feeding, to avoid regurgitation.

Handling

Corn snakes are usually happy to be handled once settled. Start with short sessions a few times a week, support the body, and let the snake move through your hands. Hatchlings can be quick and jumpy, but most calm down with regular gentle handling.

Common mistakes

  1. Gaps and unsecured lids that lead to escapes.
  2. Cedar or pine bedding.
  3. Prey that's too large, which causes regurgitation.
  4. Heat without a thermostat.
  5. Adults kept in 20-gallon tanks long-term.

Signs of a healthy corn snake

Clear eyes (outside of shed), complete sheds, steady feeding, regular droppings and an active, tongue-flicking snake exploring at dusk. Wheezing, mucus, mouth swelling or persistent refusal to eat with weight loss need a reptile vet.

FAQ

What size tank does a corn snake need? At least 4×2×2 ft for an adult.

How often should I feed a corn snake? Hatchlings every 5–7 days, juveniles every 7–10 days, adults every 10–14 days.

Are corn snakes escape artists? Yes, so use secure, locking enclosures.