It should be like a fish tank. about 24" maybe 36". but MAKE SURE THE HOLES ARE SOOOOOO TINY!!! You would be surprised what a mouse can fit through!
Another Answer:
Much like a hamster, your cage should be 360 sq inches of space. You should make it bigger for your pet to explore. Your pet should be able to not be bored all the time, so make sure your pet has plenty of toys to play with.
A mouse can have a litter of 8 to 10 babies; some more, and some less.
2 or 3
Depending on how many mice there are (obviously the more mice, the more room needed) an old aquarium would be good but you may want to add more ventilation. Also a bin cage is really good. (which is what i use for my mouse) research ''bin cages'' and it will show you what they are, and how to make them. Have fun with your mice/mouse!
2 inches
To find out how many inches are in 36 half inches, you need to multiply 36 by .5. You should get 18 inches.
It should be 95040 inches
2 inches
12 inches!
You should be 10 inches... For safety reason.
3or 4
10 inches
0 inches