[lpmcrfanatic]

I recently bought 4 feeder mice from petco to keep as pets. The cage I have is two crittertrails connected together. One is the three story one. There is one mouse who keeps fighting with all the other ones. Is there any way I can keep them together without them fighting?

 

[ABC Chinchillas]

Nope if they are fighting you will have to separate

 

[Mousey]

Is the cage at least the size of a ten gallon or smaller with multi levels? Also does each mouse have an area that can be just theirs? Generally you wold want 1 community house and a territory per mouse. This way they can get alone time if needed. A territory can be anything from anohter house to a tube or tunnell etc. Also do they have a wheel and any stimulation? Is there a chance any of them are male or pregnant?

 

[Aluyasha]

I had 4 females living together once and one day 3 of them mauled the smallest one. I got her her own cage but they did manage to rip her ears off. They were in a 20 gallon long tank.
It could be something is wrong with your setup. Or, like Mousey said, you could have a pregnant mouse or a secret male.
But sometimes you can come acrossed just a plain mean mouse.

 

[Elliriyanna]

you only need to seperate if they are drawing blood otherwise small squabbles are normal. How big is your cage? Usually mice are fine? Maybe you have a bully? Try watching their habits

 

[VanillaRat]

you only need to seperate if they are drawing blood otherwise small squabbles are normal. How big is your cage? Usually mice are fine? Maybe you have a bully? Try watching their habits

I agree with this. Unless there is blood shed,it could be just dominance. Female mice normally get along really well,but like all family members/friends...sometimes they have little squabbles.

That being said I did once have a very dominant,female mouse who was a bully with every other mouse she met to the point she would cause them to bleed. She eventually had to live on her own.

Make sure there is enough room/space and wheels for the mice. And keep your eye on them.