I have never been able to get mice to breed, rats are not a problem
A couple of my balls are mice only so I have been keeping 6 on hand at all times.
Well I dont pay much attention to them other than making sure they have food, water and cleaning.
I guess this group I have had for about 2 month and I just noticed that all 4 females are prego!!!!
My question is, should I leave them 2.4, divide them to 1.2 or what?
I looked the 2 males over and they dont show any signs of fighting, matter fact all 6 look happy as can be

If they are going to start breeding for me, I dont want to break up a good thing if I dont have to.