porcupine fish (lat. diodon antennatus) with an unusual muzzle and spikes on a dark background

underwater animal blue reef sea wildlife aquarium ocean water coral mammal organism fish porcupine fish unusual muzzle spikes dark background seabed life subtropics animal underwater aquatic nature water wildlife tropical black sea blue colorful diving aquarium exotic scuba deep saltwater reef ocean swim tank color eye skin close-up fauna portrait outdoor flora travel environment discus cichlid zoo mouth freshwater ecology natural leaf kind