rat AND mouse growing bin

[Freakzter]

has anyone kept weanlings to subadult mice and rats together for longer than a week? I've kept them together for short time periods when relocating them but would like to keep them together in a grow out bin for a month or so. is that possible or do I absolutely have to get separate bins?

[Paleosinensis]

Get separate bins; rats are predators and it will only be a matter of time before they attempt or succeed at killing the mice. Then all your hard work growing up feeders is down the drain.

[Albert Clark]

Yeah, separate them asap. They are natural enemies like lions and cheetahs, they compete for the same foods.