i currently have 2 girls in a ridiculously small 17x40 inch cage, and am building them a 2x4 grid cage as we speak. i want to move my other female in with them (i have 3) and was wondering if thats OK. I don't have enough space for a 2x5 cage, and it seems that they all get along good and have ample room in the 2x4 cage together...