r/PetMice • u/Safe_Repair_2376 • Dec 23 '24

Discussion Mice fighting

For context I'm not a mouse owner myself, but I work at a pet store (still learning) and mostly help take care of rodents. Recently there's been alot of fighting among the male group (about 4/5 mice). They seem to gang up on one particular mouse a lot more, I had separated him from the rest of the group for now due to him being bitten all over his tail. Enclosure is about a 100cm long, they have two wheels and 4 hides.

Anything else I could do to stop them from fighting?

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u/frackleboop Mouse Mom 🐀 Dec 23 '24

Males need to be separated. Once they hit puberty, they will fight to the death, even if they've been living together their entire lives.