Alright, I only have 12 rat pups left and she's slamming them down three at a time so i'm worried about running out. But they'll get bigger and she'll eat two at a time and by the time I run out i'm gonna say six weeks she'll be 500+ grams and these frozen ones will be 20% of her body weight. I'm gonna bump it up to seven days once she hits 500g so those three weeks will be long enough to get two more litters. But these babies are almost weaned at three weeks now (six left from first litter, seven from second ten days later) and only one mother at a time is feeding them. If I pair them with the male now (in a separate cage) the new pups will be six weeks old by the time I run out of these ones and the big frozen feeders. Good idea or should I wait another week for the first litter to be weaned that way the other mother can take care of her pups and have them weaned by the time I put the first mother back and put her in with the male?