Hey guys,

I am starting to get a solid rat colony going, and I am starting to get a little concerned about overcrowding. I have a 6 tub rack based on
http://www.arbreptiles.com/cages/rat_rack/ratrack.shtml

Currently, our production is still small scale (3.4 breeders with a couple more being held back), so we dont have the need for a maternity rack yet, but I think I may build one this summer. Anyway, the measurements on the tubs are 26x20x6. How many rats do you think is good to keep in each tub? Keep in mind that I am talking about breeding rats AND mom's with pups, and to some extent, grow-outs (our biggest mouth to feed isnt eating right now).

Thanks.