So my boy Gandhi is barbering his cage mate Picasso but when he barbers him some times he'll leave little bite marks or things like that. I've had them about a month and their 7 months old (I adopted them and they where cage mates then.) Couple days after I got them picasso had gotten his balls scratched it healed fine and nothing happened until two weeks ago when the barbering started. Picasso is very meek and laid back in like Gandhi who wants attention all the time. Other than the barbering they don't have any problems other than the normal scuffles. I don't know if I should separate them or get a third rat for them.