Keyhole Angelfish (Centropyge tibicen)

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

Quick facts

Scientific nameCentropyge tibicen

FamilyPomacanthidae

Care levelModerate

Reef safetyReef Safe with Caution

TemperamentSemi Aggressive

Dietomnivore

Adult size8 in

Minimum tank size75 gallons

Water parametersTemperature: 72-78°F pH: 8-8.3 Salinity: 1.02-1.025

Feeding schedule1-2 times daily

Appearance

The Keyhole Angelfish is a small, bright yellow fish with a distinctive dark brown or black vertical keyhole-shaped marking on its mid-body. The body is compressed and oval-shaped, typical of the Pomacanthidae family. It has yellow dorsal and anal fins with blue accents along the edges.

Diet and feeding

Feed a varied diet of quality angelfish pellets, frozen mysis shrimp, and small crustaceans. Supplement with occasional vegetable-based foods such as spirulina or nori. Feed 1–2 times daily in small portions.

Difficulty and care for the Keyhole Angelfish

Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.

Common health issues

Ich (White Spot Disease), Marine Velvet, Lateral Line Erosion (Head and Lateral Line Erosion - HLLE), poor appetite in new tanks

Origin and habitat

Indo-Pacific region, including the Great Barrier Reef, Indonesia, and the Philippines. Found in coral reef environments at depths typically between 20 and 200 meters.

Log Keyhole Angelfish 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 Keyhole Angelfish alongside everything else in your reef.

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