A close-up of a colorful Hawaiian hawkfish (or po'opa'a, meaning "hard head") living in a fishpond in Kapoho, Puna District, island of Hawai'i; they are also kept as aquarium fish.
Po'opa'a (Hawaiian Hawkfish), Kapoho, Big Island A close-up of a colorful Hawaiian hawkfish (or po'opa'a, meaning "hard head") living in a fishpond in Kapoho, Puna District, island of Hawai'i; they are also kept as aquarium fish.