Saltwater Fish
Centropyge bicolor
Centropyge bicolor - Bicolor Angelfish

Centropyge bicolor (Bicolor Angelfish)

Species Description…

Scientific Name: Centropyge bicolor
Common Name: Bicolor Angelfish
Species Group: Angelfish
Habitat: Reef Safe with Caution
Care Level: Intermediate
Temperament: Semi-aggressive
Diet Type: Omnivore
Role in Aquarium: Showpiece Fish
Max Fish Length: 6 (inches)
Min Aquarium Size: 55 (gallons)
Native Range: Indo-Pacific, including the Great Barrier Reef and Fiji

Overview

  • Native to the Indo-Pacific, commonly found in coral reefs, lagoons, and rocky reef slopes.
  • Easily recognized by its striking yellow front half and deep blue rear half, creating a bold contrast.
  • A moderately active species that requires a well-structured tank with live rock for hiding and grazing.
  • Can be territorial, especially toward other dwarf angelfish, requiring careful tankmate selection.
  • Best suited for an established marine aquarium with plenty of swimming space and hiding spots.

Feeding

  • Omnivorous, feeding on algae, sponges, and small crustaceans in the wild.
  • Accepts high-quality marine pellets, frozen foods, and algae-based diets in captivity.
  • Providing sponge-based foods enhances long-term health and vibrant coloration.
  • Multiple small feedings per day ensure proper nutrition and energy levels.
  • A well-balanced diet prevents malnutrition and promotes a strong immune system.

Habitat

  • Prefers reef environments with abundant hiding places and rocky formations.
  • Thrives in stable water conditions with moderate to strong water flow.
  • Aquarium setups should include live rock structures for grazing and shelter.
  • Requires a well-maintained marine tank to reduce stress and promote natural behavior.
  • Providing shaded areas and multiple caves helps the fish feel secure.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C) for maintaining good health.
  • Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
  • Requires efficient filtration and regular water changes to maintain water quality.
  • Introducing to an established tank helps reduce stress and improves acclimation.
  • Providing a structured environment with caves and crevices supports natural behavior.

Compatibility

  • Can be semi-aggressive, particularly toward other dwarf angelfish.
  • Compatible with tangs, wrasses, and other semi-aggressive reef fish.
  • Not entirely reef-safe, as it may nip at corals and invertebrates.
  • Should not be housed with overly aggressive fish that may stress or outcompete it for food.
  • Providing ample swimming space and defined territories helps minimize aggression.

Aquarium Behavior

  • An active swimmer that frequently explores its surroundings.
  • Often seen darting in and out of rock formations while grazing on algae.
  • Can display territorial behavior, especially in smaller aquariums.
  • Providing live rock formations and a well-structured tank setup supports natural behaviors.
  • Over time, it may become more comfortable with its caretaker and display interactive behaviors.