Longfin Bannerfish
Heniochus acuminatus · hen-ee-OH-kus a-kew-mih-NAH-tus
diurnalpairsLeast Concern
Friendly
Superpower
A long white banner streaming from its back makes it look bigger than it is.
At a glance
- Size
- typically 21 cm, up to 25 cm
- Lifespan
- 5–8 years
- Depth
- 2–75 m
Habitat
Coral reefs and deeper drop-offs.
Diet
Plankton and small invertebrates.
Can I eat it?
No — this one is not eaten.
Fun facts
- It is often mistaken for the Moorish idol but is unrelated.
- It sometimes sets up cleaning stations as a youngster.
- Its long dorsal filament trails like a pennant.