Kool Thanks chromeitout for the reply. thats exactly answers my ?. I'm going to be doin the most breeding with the mice for pinks for hatchling corns. I'm getting ready to build my new rack this weekend and was thinking of doing like 3.20 or so for all the pink breeding. the moms that are ready to pop will go in a maternaty bin till pups are born then go imediatly back in with a colony to do it again.

Thanks everyond for all your help once again.