A little update, I now have 6:1 ratio of mice. The closest pet shop near me was 35mins away and it was petco. I have 3 browns, 2 blacks and one silver/gray females and one albino male. The male has a bachelor pad for himself but will shortly be introduced to the females that are in a large tub with the sides cut out with 1/4 mesh (Both long sides). They love to climb the sides so I placed my air purifier ontop so no chance of escapees! (The air purifier seems to work great but I will soon be making a carbon filter for it also)

How do you know when they females are ready to mate, they all look like adults? Also can I keep all 6 in the same tub or should i split them up 3/3? The tubs are 24"wide, 15" deep and 12" tall. The males is 12" wide, 11" deep and 12" tall.

My only problem is the water bottles are leaking, I tried to place stuff behind the ball to make it a little tighter and see if that will stop the leaking.