Frozen Feeder Rat & Mouse Size Chart

Frostbite weighs every feeder and sorts it by grams, not by a guessed label. Rats run in 9 sizes from Pinky (1–13g) to Jumbo (301g+), and mice in 8 sizes from Day Old Pinky (0.1–1g) to Jumbo (30g+). Match the weight your snake eats now. When in doubt, size down.

Rat sizes

SizeWeightCommonly fed to
Pinky1–13gBaby ball pythons, adult corn snakes, king snakes, hognose
Fuzzy14–20gYoung snakes, hognose, juvenile ball pythons
Pup21–30gYoung and sub-adult ball pythons, boas, gopher snakes
Weaned31–45gJuvenile and sub-adult ball pythons, boas, carpet pythons
Small46–70gSub-adult and adult ball pythons, blood pythons, small boas
Smedium71–110gLarger ball pythons, boas, short-tail pythons
Medium111–175gAdult pythons, boas, blood and woma pythons
Large176–300gLarge boas, Burmese and reticulated pythons
Jumbo301g+Large constrictors, monitors

Mouse sizes

SizeWeightCommonly fed to
Day Old Pinky0.1–1gBaby or small hatchling corn snakes, hognose, garter and king snakes around 10–20g
Pinky1–3gBaby hognose, hatchling corn, king and milk snakes
Peach Fuzzy3–5gJuvenile hognose, young corn and king snakes, sand boas
Fuzzy5–7gJuvenile hognose, young ball pythons, corn and king snakes
Hopper / Small7–13gAdult hognose, baby ball pythons, baby boas, corn and king snakes
Medium13–20gBall pythons, corn, king and milk snakes, boas
Large20–30gBall pythons, boas, larger corn, king and milk snakes
Jumbo30g+Large ball pythons, boas, monitors

How to choose a size

  • Feed by weight, not by name. "Small" means different things at different suppliers. Our labels always come with the gram range.
  • A common keeper guideline: a growing snake's meal is about 10–15% of its body weight. Adults usually eat smaller meals less often.
  • Example: a 500g ball python × 10–15% = 50–75g, which is our Small rat (46–70g).
  • Between two sizes? Pick the smaller one.
  • This is general guidance, not veterinary advice. Always go by your animal's body size and feeding history.

Size questions

What size rat for a ball python?
Most sub-adult ball pythons eat Weaned to Small rats (31–70g), and adults eat Small to Medium (46–175g), depending on the snake's weight. Use the 10–15% guideline above.
What size mouse for a corn snake?
Hatchlings start on Pinky mice (1–3g), juveniles move through Peach Fuzzy, Fuzzy and Hopper / Small (3–13g), and adults usually eat Hopper / Small to Large mice (7–30g) or a Pinky rat (1–13g).
What should I feed a baby hognose?
Pinky mice (1–3g), then Peach Fuzzy and Fuzzy (3–7g) as it grows.
My snake is between sizes. What do I buy?
The smaller size. Our in-between gram bands exist so you don't have to jump up too far.
Rats or mice?
Ball pythons switch to rats early, after about 6–8 meals of Hopper / Small mice. Boas also move to rats as they grow, because one rat replaces several mice. Corn snakes, king snakes and hognose usually stay on mice. Read Rats vs Mice: When to Switch.
How are sizes measured?
Every feeder is weighed and sorted into its gram band before it's flash-frozen and vacuum-sealed.