naso lituratus, pomacanthus imperator, naso unicornis

acanthuridae angelfish animal aquarium atlantic barcheek biology blue bluespine closeup clown coral dawa diving emperor environment fin fish fishes fishing head hobby horn ichthyology imperator indian kala lituratus marine masked naso nature ocean orange pacific poll pomacanthus red redlip reef saltwater scale sea silver smooth spine striped surgeonfish swim swimming tail tang tropical underwater unicorn unicornfish unicornis vacation water yellow