What is the best thing to use for mices next boxes. I've tried a few and i'm happy with what i have for my females but what do people with males find is best to keep them in?
I was going to move them all back to plastic houses but worry about the smell building up too much or condensation. I do have one boy who used to love his plastic house but now has made his next in an old milk carton. Any ideas for males and females welcome :D