Male looks pretty sickly. See all the porph on his face and sides? He's not too happy right now.

They're going to need alot better airflow than those tall tubs can provide, especially with three huge females + babies in one small tub.

Get shorter tubs or replace the sides of the tubs with mesh.

I also wouldn't breed the one female on top of the other female on the right. She's high white and therefore can carry the risk of megacolon. If any of the babies have blazes(white on their heads), then I wouldn't breed them either. Megacolon is not something you want in your colony(and we pet rat breeders have been trying to get rid of it for decades, but feeder breeders just keep on using the high white rats).