I been wondering about maybe getting a female, and a male hopper. Just to kinda experiment with the idea of breading feeder mice when I get some more snakes in the future.

Stores don't sell only males or female do they? Probably a stupid question, but I could see it being possible. How old are the mice when you buy them? Do you have to wait awhile before you can sex them? And how would you go about sexing them?