Quote Originally Posted by Wapadi View Post
I have breed them in a regular rat rack for years. I had one little colony chew out of the black cement tub and when they started on a second one I fed off the colony. I typically keep 1.3 or 1.4 in a tub and they breed constantly!! Where are your tanks located? My rack is in the house so temps are really stable. I also found that you need to wean these guys or the moms wont exactly have more babies for a while. So as soon as I see them eating on the bird seed or fruit/ veggies I pull them and almost always have new babies in a day or two.
Ditto. I had the same problem as the OP untill i started pulling the babies away quicker and putting them in a grow tub. I get many more litters now by a wide margin. Wapadi hit the nail on the head.