Spottail Dartfish © Bernd Nies

Spottail Dartfish: Two spottail dartfish (lat. Ptereleotris heteroptera) swimming side by side. Dive #422: Anthias, Fiji. Nikon D200, 1/250 s, F/16.0, 105 mm, ISO 200, Wednesday, August 18, 2010 02:36:10