a blackbacked butterflyfish (chaetodon melannotus) in the red sea

underwater reef coral yellow animal aquarium organism invertebrate wildlife green fish blackbacked butterflyfish chaetodon melannotus red sea egypt blackband tropical hurghada israel aquatic colorful travel life scuba color barrier swimming macro seascape hard disk shaped hardcoral fishes water saltwater species marsa alam arabia indonesia bunaken seawater ocean undersea exotic marine nature stripes