Threeband Pennantfish (Heniochus chrysostomus)

Fish in the family Chaetodontidae. Moderate care. Reef Safe with Caution.

Threeband Pennantfish

Quick facts

Scientific nameHeniochus chrysostomus
FamilyChaetodontidae
Care levelModerate
Reef safetyReef Safe with Caution
TemperamentPeaceful
Dietomnivore
Adult size8 in
Minimum tank size75 gallons
Water parametersTemperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding schedule1-2 times daily

Appearance

The Threeband Pennantfish displays a distinctive yellow body with three vertical black bands running across its sides. It has a small mouth, deeply forked tail, and a characteristic dark stripe through the eye. The dorsal fin is tall and pointed, giving the fish its characteristic pennant-like silhouette.

Diet and feeding

Feed a varied diet of high-quality meaty foods including mysis shrimp, brine shrimp, and finely chopped seafood, supplemented with small amounts of algae-based foods and quality flake or pellet foods. Feed 1-2 times daily.

Difficulty and care for the Threeband Pennantfish

Moderate difficulty. H. chrysostomus requires stable water conditions, appropriate tank size, and a varied diet. It is less hardy than some other Heniochus species and may be finicky as a captive feeder, making it better suited to intermediate aquarists.

Common health issues

Parasitic infections, lateral line erosion, poor appetite if not acclimated properly

Origin and habitat

Indo-Pacific region, including the Red Sea, East Africa, and extending to Hawaii and the Great Barrier Reef.

Log Threeband Pennantfish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Threeband Pennantfish alongside everything else in your reef.