need an opinion

[TeaNinja]

so my dumerils hasn't eatin for roughly 3 months, which isn't alarming at all, especially since mating season just came around. the rat i've had the last 3 months as his dinner is now the dad rat of my 2 breeders. i really don't want to feed him the dad rat, but i REALLY don't want to go buy another rat from the store and have the possibility of nigma not eating it and having to house a 3rd rat.

my rats are going to have their pups in about 2 weeks, then it will take at least another month or so for the babies to be big enough for a decent nigma meal.

my question is, can i safely wait until the rat pups grow up to feed nigma again? or should i feed the dad rat and use one of the pups as the new breeder rat when it grows up? or should i just buy another rat from the store and keep these 2? but like i said i hate the idea of possibly having to house another rat.