Schooling bannerfish (Kristina Vackova / shutterstock.com)
Bannerfish (Heniochus sp.) are a subgroup of the butterflyfish family. They typically have black-and-white banded bodies and yellow caudal and dorsal fins. The longfin bannerfish can reach a maximum length of about 25 centimeters (10 inches). Bannerfish feed on zooplankton, coral polyps, or bottom-dwelling invertebrates.
Inhabits the Indo-Pacific Ocean.