This male Ribbon Eel lives at Padang Bai Harbour on the east coast of Bali. Juvenile Ribbon Eels are black and really difficult to get interesting shots, as they mature they turn blue like this one with a yellow face and dorsal fin. Ribbon Eels are protandric which means as they mature they turn into females and their coloring changes again to yellow with a black anal fin.
Like other species of Eels their open mouths can make them look dangerous but they are merely breathing.
Expanded anterior nostrils used to detect motion, make Ribbon Eels easy to identify. Ribbon Eels can grow to 4 feet and live for 20 years.