Heniochus acuminatus | Size L

The Heniochus acuminatus, or Longfin Bannerfish, is a popular choice among marine aquarium hobbyists due to its elegant appearance and active behaviour. Recognisable by its striking black and white vertical bands and long, trailing dorsal fin, this butterflyfish adds a dynamic visual element to well-established reef tanks.

Care Level: Moderate – best suited for aquarists with some experience in marine fish keeping.

Temperament: Generally peaceful but can be territorial towards conspecifics or similar species. It is compatible with a variety of other peaceful fish but should be introduced carefully to avoid aggression.

Diet: Omnivorous. Requires a varied diet including high-quality marine flakes, pellets, frozen mysis shrimp, brine shrimp, and occasional algae-based foods to ensure optimal health.

Minimum Tank Size: 180 litres (approximately 50 gallons) to provide ample swimming space and reduce territorial behaviour.

Lighting and Water Flow: Standard reef lighting is suitable. Moderate water flow mimicking natural reef conditions is recommended to keep the fish comfortable and healthy.

Placement: Provide plenty of live rock for grazing and hiding spots. This species appreciates a well-decorated tank with caves and crevices.

Origin: Indo-Pacific region.

Maximum Size: Up to 25 cm (10 inches).

Reef Safety: With Caution – While generally reef safe, they may nip at coral polyps or small invertebrates, so caution is advised in sensitive reef setups.

Overall, the Longfin Bannerfish is a visually stunning addition to larger marine aquariums, offering both beauty and moderate hardiness when provided with appropriate care.