I have about 20 mice, all weighing in between 20-32 grams, most of them on the low 20s, 1 males to 4 females each, I got everything down backed from what I know, temp 70-75, water, food, clean substrate, no action, all they seem to do is just sleep, sleep , n more sleep,sometimes thro in the wheel for them to run, all they do is eat, drink, poop n sleep, not much movement

Ive had all the mice going on 2 months now, not 1 prego