i too am a newb with the mice/rat breeding, so far 1 died somehow, 1 got out and i wear its like the movie mouse hunt and he laughing at me going threw the couch in my basement looking for him. and i see alot of humidity in the rats tub for some reason and they are sneezing. Hopefully it will work out though...but rodents are rodents, and rodents multiply, so why is it such a pain to get them to do in a controled enviornment? lol good luck everyone