Before welcoming Piggy into your home, it's a good idea to read up on guinea pigs and their care. Also, find a veterinarian in your area who is comfortable treating guinea pigs; not all of them are.
Your new guinea pig should be at least six weeks old before bringing him home. Guinea pigs can already breed at this age, so be sure not to keep a male and female in the same cage unless at least one is neutered. (Check with your veterinarian for more information about getting your pet spayed or neutered.)
Guinea pigs come in a variety of colors and coats from which you can choose. They may be a solid color, or a combination of two or three colors. Their coat may be short, long, silky or whorled. There are even hairless guinea pigs! If you choose a long-haired guinea pig, be prepared to help him groom himself by combing him once every two or three weeks.