Schooling bannerfish
Alternative names: False Moorish Idol, Heniochus diphreutes
The schooling bannerfish is a butterflyfish that lives in large groups in the Indo-Pacific waters.
It is very similar to Moorish Idol, and the longfin bannerfish, the only things that tell them apart is the fact that the schooling bannerfish has smaller snout, bigger eyes and the more rounded breast area.