It all kind of depends on what kind of frogs you're looking for. As far as firebellies go, as Tony said they are a very Hardy and adaptable bunch. They will almost all be wild caught and that is not a bad thing as they will be more vividly colorful than CB. Look for a healthy pair any petstore even Petsmart ask them to be fed and pick out the quickest and fatest. What kind of frogs are you looking for?