Cocos-Keeling Angelfish

Geographical Origin and Habitat: Eastern Indian Ocean, restricted to Cocos (Keeling) Islands and Christmas Island. Typically found in shallow waters and reef areas rich in hiding places.

Taxonomy and Morphology: Belongs to the family Pomacanthidae. Characterized by a body structure adapted to its active lifestyle, showing bright coloration. Size up to 7.0 cm.

Social Behavior: Active species with a semi-aggressive temperament. Shows moderate to high territorial habits depending on sex and population density.

Coloration and Sexual Dimorphism: Males and females display visible differences in color pattern and vibrancy, especially during the courtship phase.

Aquarium Setup: Requires a marine tank of at least 31 gallons (approx. 120.0 liters), decorated with live rocks to provide natural shelter. For sand-dwelling wrasses, a fine sand bed of at least 2-3 inches (5-8 cm) is essential.

Diet and Feeding: Omnivorous. Feeds on benthic algae, detritus, algae-enriched pellets, and frozen foods. It is recommended to feed the fish two or three times daily in small portions.

Water Quality: Stable parameters: temperature 24.0-28.0°C, pH 8.1-8.4, SG stable between 1.020 and 1.025. Monitored nitrates and phosphates.

Compatibility and Cohabitation: Compatible with reef fish. Avoid housing with larger predators or highly aggressive tankmates.

Aquarium Breeding: Protogynous hermaphrodite. Forms monogamous pairs or small groups. Reproduction in captivity is extremely rare.

Risks and Diseases: Hardy species but sensitive to common skin parasites (Cryptocaryon) if chemical stress occurs.