High Quality Content by WIKIPEDIA articles! The yellow clown goby, Gobiodon okinawae, also known as the Okinawa goby or yellow coral goby, is a member of the goby family native to the western Pacific from southern Japan to the southern reaches of the Great Barrier Reef. As the name implies, they are bright yellow in color, save for a whitish patch on each cheek. Equally bright as their coloration is their personality; they are valued additions to reef aquaria, with a reputation for being friendly and entertaining.