I would definitely say try to find a breeder not a petstore. I have a horribly sad story I haven't shared with anyone here yet because it's been too hard to talk about. My fiance and I bought two baby boy rats a few months ago, and fell in love. We read up ahead of time and got some that showed no signs of illness while handling them at the store. However, about a week after we bought them one and then the other began breathing hard, appearing lethargic, and gurgling or wheezing. We took them to the vet when we noticed these symptoms. They got antibiotic and felt better until it ran out, then the symptoms came back. Then back to the vet for more meds, more bills, and lucky for us, this time a case of mites courtesy of the animal who had been in the exam room before us. So back to the vet, mite treatment, plus the second dose of antibiotic is gone and the symptoms of respiratory infection have returned. Long story short, they loved us, answered to their names, and we adored them and after about two months and approx. $300--both gone. It's heart breaking. We are now communicating with a reputable breeder of dumbos because we're never doing that again.