Ive been getting my rat breeding setup ready for a couple weeks now. Currently I have four 50 qt tubs each holding 2 females. Now im going to be circulating the male to the next tub every 2 weeks. By the time he he gets there i will have 6 tubs. (im buying them on a "Have money" basis lol) The post ive seen on these forums talks about having 12 female rats and cycling the male between them to get a litter every week. Which is what i need. However I dont want to have the females in a tank by themselves as that is kind of cruel to them. So i have them in sets of two. So does anyone have any ideas on how to plan a litter a week with 2 females per tub and circulating the male every two weeks? Or at least how to estimate