I just got my first ball python a couple days ago and I was wondering wether it would be best to feed them mice or rats (is there a difference?) and how often and how big? The person at Percocet said that it was eating a mouse (I'm not sure what size) every Sunday. I'm not sure how old they are or their weight (or gender) but if someone could tell my how to link a picture I can post one. I just want to make sure I'm doing this the right way. Thanks!