As a reptile grows, the size of its feed needs to grow with it, and Monkfield's graded mouse range exists so that step-up happens without switching maker or nutrition partway through.

These are medium mice, 15-20g each, sold frozen in a pack of five. The analysis — 67% moisture, 21% protein, 9% fat — is the same across Monkfield's whole mouse range, so moving up or down a size doesn't change what's actually in the feed. As with any frozen prey, thorough defrosting is required: naturally, at room temperature, never in warm water or a microwave.

• Medium mice, 15-20g each
• Pack of 5
• Analysis: 67% moisture, 21% protein, 9% fat
• Must be fully defrosted at room temperature before use, never in warm water or a microwave
• Hands should be washed thoroughly before and after handling

On sizing. Medium sits mid-scale between Small and Large on Monkfield's range — if your reptile has recently outgrown Small mice, this is the next logical step, but it's worth confirming against your animal's actual size before committing to a pack.

Who it's for: reptile keepers whose feeding size calls for medium mice, wanting a pre-portioned frozen pack rather than sourcing prey loose.