I agree that pet shops and books aren't good or accurate sources of information. When I first got Frisco, I relied on the two for information, and when I finally got the internet, BOY did I realize what I was doing wrong. The pet store and the books all reccomended seed mix, pine/cedar bedding, said that lone rats make better bonds with the owner and that bucks will fight, and even gave info on certain standards of rat colours and types that were all wrong.