Part of the With What family
Pets With What
Species  ·  Reptile

Corn Snake

Pantherophis guttatus
North American rat snake in a paintbox of colours — the world’s default first snake for half a century.
Everything that makes a good first snake was standardised by the corn snake: a manageable metre-and-a-bit, unfussy feeding, mild temperament, hardy constitution, and a morph catalogue that runs from wild-type orange to sunset absurdities. Its one universal keeper lesson is the lid: a corn snake tests its enclosure nightly with the patience of running water, finds the gap eventually, and turns up three weeks later in a bookshelf. Latch it like you mean it — and check whether you can keep one at all, because in some countries, Australia among the places this question bites hardest, the answer differs.
At a glance
Lifespan
15–20 years
Adult size
1.2–1.5 m
Minimum housing
90–120 cm enclosure, latched
Heat & light
Warm-side around 30 °C, gradient to low 20s
Diet
Whole prey — a mouse, weekly to fortnightly
Handling
Excellent — active but amiable
Company
Alone, always
With children
Good supervised handling for older children
Daily attention
Minutes daily; exactness over quantity
Morphs  ·  4 listed
Hundreds of morphs on the same easy snake. The wild type is still one of the best-looking animals in the hobby, at a fraction of the fashion price.
Right for you if
  • You want the standard-issue first snake the world hobby was built on.
  • The enclosure latches, and you will treat that as a discipline, not a suggestion.
  • Frozen mice and minutes-a-day care suit the household.
  • Fifteen-plus years is a term you can sign.
Wrong for you if
  • Where you live says no — and for this species, several places do.
  • An escape would end the hobby in your house rather than begin a search.
  • You want a snake that sits still on display; corns commute.
  • The freezer rule fails the household vote.
Welfare and sourcing — read this part

Sources

  1. Disorders and Diseases of Reptiles. MSD Veterinary Manual 2026. Accessed 2026-09-05. International MSD Veterinary Manual Secondary nutritional hyperparathyroidism — metabolic bone disease — is the most common bone disease seen in pet reptiles, driven by poor calcium-to-phosphorus ratios, insufficient vitamin D3, lack of UVB light and inadequate temperature, and it predominantly affects rapidly growing plant- and insect-eating lizards, turtles and tortoises. Respiratory infections including pneumonia are common in reptiles and are tied to unfavourable temperatures, poor sanitation and malnutrition. Treatment does not succeed unless nutrition, environment and sanitation are corrected too.
  2. Providing a Home for a Reptile. MSD Veterinary Manual 2026. Accessed 2026-09-05. International MSD Veterinary Manual Reptiles are ectotherms that regulate body temperature by moving around their environment, so an enclosure must offer a range of temperatures within the species’ preferred band — and exceeding the upper limit by only around 5°C can be deadly for some species. UVB light in the 290–320 nm range is essential in many species for making vitamin D3 in the skin, which enables dietary calcium absorption.

Every source here was checked, not recalled. Where this page makes a health statement and no source appears against it, that is not an oversight we have hidden — it means the claim is not yet sourced, and the build reports how many are in that state.

Availability, registration and keeping requirements differ from place to place. Check the rules where you live before you commit to any animal — we describe animals, not law.