according to an article on reef magazine, titled "Reef Safe Butterflyfishes?"
by Matt Wandell
The chooling Bannerfish (H. diphreutes), that is considered relatively safe to include in a coral reef aquarium. H. diphreutes is very easily confused with the Reef Bannerfish (H. acuminatus), a fish that is generally considered a substantial risk to place in a coral reef aquarium.