I am curious what is everyone's setup? Do you separate the female pregnant mice from the male mouse? Currently, I have two bins with 3 females and just so happens one male rotating for now because the other male didn't impregnate the new colony. I was thinking of separating the males from the new litter and add them to new colonies of females. I read some people have birthing tubs. Is it better just to move the extra females and males into a new tub for a new colony? I'm trying to plan ahead to grow the business size before I over my head in running it.