Yeah I just had 2 first time breeders pop out 25 between them. One got suffocated though since one of the girls likes to pile all the babies up in one corner while the other one seems perfectly happy just to steal 2 or 3 and nurse them lol. Then two of my larger girls had two litters of 16-18 each (same tub had 35 babies crawlin in it lol. I love good rat months!