About feeding a corn snake
Corn snakes are the classic beginner snake — hardy, even-tempered and reliable feeders, which is exactly why keepers tend to overfeed them. Like all snakes they eat whole prey sized to their body, on a schedule that stretches out as they grow.
How much should a corn snake eat?
Snake feeding is based on prey size relative to body weight, matched to standard frozen prey. The chart below shows the right prey and frequency for each weight class — the calculator gives a specific recommendation for your snake's exact weight.
| Snake weight | Prey item | Prey weight | Frequency |
|---|---|---|---|
| under 30 g | Pinky mouse (2–5g) | ~3 g | every 6 days |
| 30–80 g | Fuzzy mouse (5–10g) | ~7 g | every 7 days |
| 80–200 g | Hopper mouse (10–20g) | ~15 g | every 7 days |
| 200–400 g | Adult mouse (20–30g) | ~25 g | every 9 days |
| 400 g and up | Jumbo mouse or rat pup (30–50g) | ~40 g | every 12 days |
What to feed
Corn snakes are carnivores that eat appropriately-sized mice (and small rats for large adults). Prey should be roughly the width of the snake's widest point, generally 10-15% of body weight. Frozen-thawed prey is the safe standard.
How often to feed
Hatchlings eat every 5-7 days, juveniles every 7 days, and adults every 10-14 days. Corn snakes are eager feeders, so it's on the keeper to hold to a sensible schedule rather than feeding on demand.
Common feeding mistakes
- Feeding adults too frequently, leading to obesity.
- Prey too large for a slender-bodied colubrid.
- Handling within 48 hours of a meal, which can cause regurgitation.
- Using live prey unnecessarily.
Weight & health
Obese corn snakes develop visible fat and lose their sleek profile. Because they're such willing eaters, portion discipline matters more than with fussy species. A slightly lean corn snake is healthier than a plump one.
Frequently asked questions
How often should I feed a corn snake?
Hatchlings every 5-7 days, juveniles about every 7 days, and adults every 10-14 days. Stretch the interval as the snake matures to avoid obesity.
What should I feed a corn snake?
Appropriately-sized frozen-thawed mice, moving up to small rats for large adults. Prey should be roughly as wide as the thickest part of the snake.
Can I handle my corn snake after feeding?
Wait at least 48 hours after a meal before handling. Handling too soon can stress the snake and cause it to regurgitate its food.
How big should a corn snake's prey be?
About the width of the widest part of the snake's body, roughly 10-15% of its weight. A visible but modest bulge after eating is normal.