Seconding Outcast's advice. The book is a tremendous help and a very easy cover-to-cover read. If you do choose to breed, the pairs should only be put together under supervision, and only in pairs. Don't put both females in and leave the trio together for months. Some breeders do successfully cohab for breeding, but I would not recommend it for your first time. Also know, from my experience, it's not usually as simple as throw them in the bin together, and walla! Many of mine had to be introduced MANY times, over the course of a month or two, before they were receptive. some never bred, some slugged out, hets didn't match up the way they're predicted to, customers SUCK for the most part, and well as much as i loved breeding this year i'm not sure i'll do much of it in the future!