Super Pet Deluxe My First Home, Pet Rat
purple base 24.5"x12.5"x14.5"

OK so I have my two females, Tess and Isabelle in a Super Pet Deluxe, My First Home, Pet Rat cage. The Dimentions are 24.5"x12.5"x14.5" with a purple base. Here's a link to what the cage looks like.

I was wondering, how many rat's is safe to keep in this one cage. Currently I have my two females living here and they both seem quite content. The reason I ask, is soon I plan on introducing one of our males into the cage and was wondering if I'd need to remove one of the females, or if the male and two females could all be together.

Also when the females get pregnant we plan on moving them to their own tanks.

Thanks for any information!