| Scientific Name | Heniochus diphreutes |
| Common Names | Schooling Heniochus, False Moorish Idol, Pennant Butterflyfish |
| Max Length | 7.1 in (18 cm) |
| Min Tank Size | 100 gal (379 L) |
Range: Indo-Pacific
Aquarium Suitability: Very Hardy
Foods & Feeding: Omnivore: Meaty Foods & Herbivore preparations
Reef Compatibility: Not a threat to invertebrates or corals
Captive Care: The Heniochus genus has a few commendable Butterflyfishes. Most enjoy how sturdy, bold species schools readily in captivity, but need plenty of swimming space. These fish will do best in a peaceful tank. All Schooling Bannerfish should be added to the tank at the same time as these fish will create a hierarchy. If you are lucky they will engage in cleaning behavior with other fish. This is simply a stunning fish!