Photo copyright Tim Nicholson.
Bigeye Trevally, Caranx sexfasciatus
Taken on Lady Elliot Island, Australia.
Mostly active at night or at dusk. Fast-swiming predators of the waters above the reef and in the open sea.
Further Reading
The Underwater Photographer: Digital and Traditional Techniques, by by Martin Edge, Paperback, 536 pages (2009)