yea the colored rats do not have many babies! mine had 5 babys sunday nite and my plan white one had 13 babies last time! all tho it dont look like my white rat toke this go around! i have 1.2 set up and just flop the male around for a week @ a time! i also keep 2 female babies i am going to breed in a few months.. there from my litter that was born new years day how old do thay have to be to breed?