When I had my mice I didn't know any better and had two littermate males live together.
They were together from day 1 and given to my boyfriend who took excellent care of them. They were fat, healthy, happy til one day he found a skeleton in the cage, and the other mouse dead as well.
They had fought so badly that one was killed and eaten, and the other died of fatal wounds. He had them together for MONTHS before this occurred.
Not trying to be scary, just saying that "I haven't had problems so far" is a false sense of security.
They were together from day 1 and given to my boyfriend who took excellent care of them. They were fat, healthy, happy til one day he found a skeleton in the cage, and the other mouse dead as well.
They had fought so badly that one was killed and eaten, and the other died of fatal wounds. He had them together for MONTHS before this occurred.
Not trying to be scary, just saying that "I haven't had problems so far" is a false sense of security.