Billy Watson took this fantastic image of a group of Banggai cardinalfish (Pterapogon kauderni) at Madawide II dive site in the Lembeh Straits, Indonesia in April 2013. It has rightly gained lots of attention on the Wetpixel Facebook group. He was using a Canon 5D Mark II with a Canon 100m f2.8 lens and lighting from 2 Ikelite DS-160 strobes. Camera settings were 1/200 @ f9, ISO100.