Bicolor Angelfish

Amphiprion ocellaris 

Habitat & Distribution :  Indian-Pacific Ocean

Diet: Algae, small crustaceans, worms

Size: Up to 15 cm 

Lifespan: 5 - 12 years

Description

The bicolor angelfish (Centropyge bicolor) is a small, active marine fish known for its vibrant yellow and blue coloration, often displaying a mix of shy and, at times, aggressive behavior. Physically, they are characterized by a compressed, deep body designed for navigating tight coral crevices, with a notable, sharp spine on their gill cover (preopercular spine).

Behavior

Bicolor angelfish (Centropyge bicolor) are active, semi-aggressive reef fish known for their distinct yellow-and-blue coloration, often keeping to themselves or in pairs. They are timid when introduced but become territorial, especially toward other angelfish.

Reproduction

Bicolor angelfish (Centropyge bicolor) are hermaphroditic, harem-forming broadcast spawners that are notoriously difficult to breed in captivity. They live in groups with one male and several females, where the largest female will turn into a male if the current male dies. Spawning occurs at dusk, with females releasing eggs that float in the current

Communication & Perception

Males are highly territorial, defending areas up to 200m² against rival harems. They communicate dominance to females in their harem and aggression to intruders through chasing and displaying their bright blue and yellow coloration. As with most reef fish, the Bicolor Angelfish relies heavily on sight. Their bright, contrasting colors (blue on the posterior, yellow on the anterior) are crucial for species recognition and social interactions in the visual environment of a coral reef.

Predators

In their natural Indo-Pacific habitat, Bicolor Angelfish are preyed upon by larger reef fish, sharks, barracudas, and marine mammals.