puff·er (p¾f“…r) n. Any of various prickly, often poisonous, chiefly marine fishes of the family Tetraodontidae that are capable of puffing up by swallowing water or air. Also called blowfish, swellfish.
Puffer Fish are Personable but have Sharp Teeth that Can do Damage to Other Fish. These fish should be kept singularly or in an aggressive type of saltwater aquarium.