ahhh very interesting....I mean the only reason I'm asking is I'm going to get into the breeding game as soon as I can, right now I'm just collecting, and learning, but I want to know exactly what I'm doing when the time comes. Now being that mice are a lot smaller then rats wouldn't it just be easier to feed them mice cuz you can fit more of them in rack systems. I don't want to have to worry about buying frozen food all the time, I want to be able to produce my own, I just don't know what kind. BTW I'm not trying to hijack this thread, just kinda happened that way lol.