Quote Originally Posted by escomaya View Post
shoot!! where'd you get ur mice from, i have about 20 mice right now in 2 tubs, and no prego in the last 2 months now, got them from petco, swapped out the males a bunch of times, the males chase for the 1st few days and then quit, females wont em do there magic
if the females are not ready they wont let the male near them.
watch your females real close you can sometimes see if they are in heat or not sometimes there will be a tiny bit of blood and i mean tiny

also i dont separate my male from my females just let them do their thing and they will not breed if its dark 24 hours a day. rats will breed in total darkness.