Bellus Angel

Aquarium Requirements

Minimum Tank Size: 350 litres (90 US gallons) or larger — 475 L+ recommended for pairs or harems

Temperature: 23–27 °C (74–81 °F)

pH: 8.1–8.4

Specific Gravity (Salinity): 1.020–1.025

Alkalinity: 8–12 dKH

Ammonia & Nitrite: 0 ppm

Nitrate:< 20 ppm (preferably < 10 ppm)

Aquascape: Provide a spacious aquarium with a mix of open swimming areas and rock structures for retreat. Although Bellus Angelfish spend much of their time in the water column, they appreciate shaded areas and overhangs that replicate their natural deep-reef habitat.

Maintain strong, laminar water movement and excellent oxygenation. Dimming the lighting or providing subdued zones will help mimic natural depth conditions and reduce stress.

Diet and Feeding

The Bellus Angelfish is a planktivorous omnivore, feeding primarily on zooplankton, copepods, and suspended matter in the water column. In captivity, it readily adapts to prepared foods if offered a varied, nutrient-rich diet.

Recommended Foods:

• Enriched mysis shrimp and brine shrimp

• Finely chopped marine seafood (clam, shrimp, scallop)

• High-quality frozen or dry plankton substitutes

• Spirulina- and algae-based flakes or micro-pellets

• Frozen reef blends for planktivorous fish

Feed two to three times daily in small portions, ensuring food is carried through the water column where the fish naturally feed. Frequent feeding promotes natural activity and sustains vibrant coloration.

Temperament and Compatibility

The Bellus Angelfish is peaceful and social, making it one of the most community-friendly members of the angelfish family. It thrives either singly, in mated pairs, or in small harems (one male with multiple females) when space allows.

Suitable Tankmates:

• Peaceful reef fish such as anthias, fairy wrasses (Cirrhilabrus), flasher wrasses (Paracheilinus), gobies, and chromis

• Other peaceful angelfish species from the Genicanthus genus (in larger systems)

• Non-aggressive tangs and butterflyfish

Avoid:

• Aggressive or territorial species (large triggers, aggressive angels, or predatory wrasses)

• Fin-nippers and boisterous fish that may outcompete for food

The Bellus Angelfish rarely shows aggression except in cases of territorial pairing disputes. If introducing multiple specimens, add them simultaneously or introduce females before males to minimize conflict.

Reef Compatibility

✅ Reef Safe

Unlike most angelfish, members of the Genicanthus genus are obligate planktivores and do not nip at corals, clams, or sessile invertebrates. The Bellus Angelfish is therefore considered completely reef safe, making it ideal for coral-dominated reef aquariums.

It provides natural motion and contrast within the upper water column without posing any risk to delicate reef organisms.

Additional Information

Maximum Size: Up to 18 cm (7 inches)
Lifespan: 10–12 years in captivity with optimal care
Difficulty Level: Moderate — best kept by intermediate to advanced aquarists
Natural Behavior: Active midwater swimmer; social; typically found in pairs or harems; enjoys strong current and open space
Origin: Western & Central Pacific — from the Philippines and Indonesia to Palau, Micronesia, and the Coral Sea

Sexual Dimorphism:

• Male: Bold black and orange striping across a silvery body

• Female: Grey-silver body with orange-edged dorsal and caudal fins

• In captivity, females can change sex to male if dominant in a group — a natural process among Genicanthus species.

Summary

The Bellus Angelfish (Genicanthus bellus) is an elegant, reef-safe species admired for its peaceful disposition, graceful swimming, and striking sexual dimorphism. Perfect for advanced community or reef aquariums, it thrives in large, open-water systems with strong currents, excellent water quality, and frequent, varied feeding.

With proper care, the Bellus Angelfish will display its full beauty and active social behavior, serving as a dynamic and harmonious addition to the upper layers of a mature marine aquarium.