My spotted puffers eat like horses and they are only about an inch long. I am trying to figure out what to give them to keep their beeks worn down. I put a few fiddler crabs in the tank with them and they did eat one of them but don't seem interested in them anymore. I know that they will go after snails too but I would want to start breeding them before feeding them or it will become a little expensive. I did purchase some dried shrimp for them and they love it. Is it enough to give them shrimp or is it not hard eough to really do anything?