Triggerfish at Flourishing Reef

Balistapus undulatus

An orange-lined triggerfish (Balistapus undulatus) feeds on algae and hard coral tips at a flourishing reef off the coast of Mafia Island. Orange-lined triggerfish are diurnal, solitary and territorial, erecting its dorsal spine to intimidate opponents and predators. Photo taken with a Canon 7D and a 18-55mm LenseOrange Lined Triggerfish1 in an Ikelite eTTL HousingOrange Lined Triggerfish 2 with Ikelite Flat Port and two Ikelite DS-161 Strobes, shot on 18mm.