chaetodon austriacus or blacktail butterflyfish observes surroundings near a coral reef with hard corals and seeks food.

animal aqua aquarium aquatic austriacus background beautiful beauty black blacktail blue bright butterfly chaetodon closeup color colorful coral deep diving dream egypt exotic exquisite fish life marine natural nature ocean one polyp red reef saltwater scuba sea striped swimming travel tropic tropical undersea underwater water white wild wildlife yellow