he live aloney becuse he are aggresive to another rat. He bites them and fight so he live alone. he is my best friend. And he are 1 year and 3 monhts old. he are castrate to. He are my little beam rat.
if he's neutered have you tried getting him a female rat friend. i've heard that males that are agressive with other males tend to get along just fine with females. of course this was always after a neutering so that could have been what changed the agression too.. anyway, its a thought. very beautiful male