I have several questions on breeding rats. Any help is appreciated.

What is the maximum ratio of females to males? (ex: is 1:5 possible?)

Do they have to be in tubs or can they be in glass aquariums? What size?

How bad is the smell? (No smell, noticable, or just terrible!?)

Can they be kept in a garage? What are the temperture extremes? (40f-90f?)

Can I house a whole group together (1:4?) forever, leaving the male and females together even with the babies?

Any tips would help also. Thanks