Shoal of Pyramid Butterflyfishes, Hemitaurichthys polyepis, Molokini Crater, Maui, Hawaii, USA

yellow butterflyfish butterflyfishes chaetodontidae perciformes chordata coralfish coralfishes reef reefs coralreef coralreefs coral reef fish fishes shoal school schooling swarm group groups underwater marine wildlife nature aquatic sea ocean underwaterphoto underwaterpicture underwaterphotography underwaterworld sealife south sea pacific ocean shoal of pyramid butterflyfishes hemitaurichthys polyepis molokini crater maui hawaii usa horizontal format n/a