The topic says it all. What size food, gram wise. Would you guys feed to a 239-245 gram female ball? I've read that, the rule of thumb is 15% of the body weight is the way to go, and 15% of 240 is roughly 35 grams. Now my other question would be, my largest mice I have right now are only 20 grams. But I have small rats that weigh 30 grams. Would it be safe to try and feed her a small rat at her weight and age? She completely ignores my mice when I try to feed. So I don't know what to do.