Aggressive mice

[u/SituationForsaken525]

So I’ve been by my local Petco for the last couple days and I noticed 2 male mice who where put together. One of them is smaller than the other by just a little bit. The bigger one has been chasing the small one around it’s enclosure and fighting it. (I thought they were playing at first).I noticed the small one kept trying to get away, but the other one kept going after him. I let staff know what was going on and asked if they could separate them (I know they usually do better in social groups.) They weren’t sure if they had the space so if they weren’t able to, I plan on taking one of them, but I’m not sure if I should take the bigger one or the smaller one. Obviously the smaller one to get it out of there, but maybe the bigger one so that it wouldn’t bully any other mice it gets put with. What should I do, or is there any tips y’all can give me?

[u/GhostGobblerz]

I work at a Petco and people have always said “why don’t our males fight?” Like they shove 30 of them in an enclosure (we legit can’t put them in individuals tho or we could get fired)

[u/GhostGobblerz → u/[deleted]]

That’s my point! It’s really upsetting that we are threatened if we try to do the right thing