Thanks for all the extra help/tips!
I'm picking the rats up today, they are only around 6 weeks old. They were $3 each and I got 1 male and 4 females. Does that price sound okay?
How old do they have to be until I can safely start breeding them?
I'm in no rush as I have 100+ frozen thawed rats still in the freezer.
Keeping them in a tub with a water bottle + some pet store food until I can order the online rodent food. Also should I seperate the male for now?