Longfin Bannerfish
Heniochus acuminatus
Longfin Bannerfish is a reef-associated butterflyfish with a long white dorsal filament and bold black-and-white bands. It feeds mainly on small zooplankton and is widely seen around coral reefs and lagoons; it is more an aquarium/recreational observation species than a common angling target.
Identification points
- Tall white dorsal banner filament extending from the front dorsal fin.
- Two broad black vertical bands on a white body with a yellow-orange face and rear body tint.
- Long, stream-lined bannerfish profile with a pointed snout and dark tail edge.
Habitat
Shallow coral reefs, reef slopes, outer reef edges, lagoons, and clear coastal waters; usually near branching coral and current-swept reef faces from the surface to moderate depths.
Bait notes
Not a standard game fish and is rarely targeted by anglers. If accidentally encountered, it may take tiny drifting zooplankton-like baits; small pieces of shrimp or finely cut marine bait may attract it, but catch-and-release is best.
Behavior
Forms small groups or pairs and picks zooplankton from the water column; often hovers in place in surge or current and can shelter near coral heads when disturbed. It is diurnal and not typically a bottom forager.
Caution
Reef species; handle carefully to avoid damage to delicate fins and minimize reef injury. Check local regulations, as ornamental reef fishes may be protected or restricted in some areas. Not known as a food fish.
Fishing notes
Best observed while snorkeling or diving rather than fished for. Any capture should be with the lightest possible gear and a quick release, avoiding reef contact; do not target in coral habitats where damage is likely.