Canon EOS R5 with Canon 24-105 mm L-series lens; 39 mm; ISO-1250; f/4.5; 1/400 sec; +0.3 Exposure Bias.
This page is for the Schooling Bannerfish (Heniochus diphreutes). Also knows as the false Moorish Idol, this fish is the striped fish with the long dorsal fin trailing behind it. We saw these fish with several others at a man-made reef while in a submarine off the coast of Honolulu.