While obviously fascinating to watch, pet sharks fall into the category of exotic pets, which means they need not only special care, but in some cases can be a challenge to keep. This is one type of pet where you really need to do your homework before going shopping.Even if you’ve had plenty of experience with pet dogs, cats, and goldfish, pet sharks are a different story entirely. The first piece of advice is not to buy a pet shark unless you’ve had previous experience in keeping saltwater fish in an aquarium. In fact your aquarium experience should include larger saltwater fish, the Clown fish being an example. Even if you decide upon purchasing one of the freshwater sharks as your pet, you still should have some prior experience with keeping reasonably large fish.