Hello, my name is Darla. Recently got 3 pet mice for my son, now we have 2 sets of babies. We are happy and all is fine. Although he will be keeping several mice as pets we are planning on breeding some for ...well... . I have been reading info on your forum since we got the mice and it is very informative. I did have a question about telling the difference of boys and girls on 7 day olds. I suppose this is not the right place for that. I will post a proper question at another time. Thanks so much!