Puffers, Boxfish, and Porcupinefish are considered hardy in the sense that they will almost always adapt to aquarium food if fed proper foods. As a matter of fact... these fish love to eat. They look forward to seeing the person that feeds them like a puppy waiting for their owner to get home! Consequently they seldom starve in an aquarium, but they do have some special needs that you should be aware of in order to keep them healthy. The Puffers, Boxfish, and Porcupinefish are usually very interesting fish to observe and are quite unusual in appearance.