Set out dry catfood 24/7 and let the cats eat as much as they want. As for wet catfood on top of that? Twice a day is fine. Just remember that you are your cats servant... Owning a cat is like electing a dictator. If you can't live under a cat's rule, then don't get a cat. Cats can be trained though. If you live under the cat's rule, then you and the cat will get along just fine...
