I've heard that removing the male may make the females reject him when you return him to the tank.

So basically the set up would be the one tank with the females, male in to breed. The females have litters, the offspring grow and get seperated by sex at about 4 weeks, since they can start breeding as early as 5 weeks, correct?

I was told by some to just keep the male in and let the females have a few litters, then give them a few weeks rest, then put them back into the breeding cycle. If anyone has a breeding schedule for one male to about 4 females, I would love to take a look.