Description
Bicolor Angelfish (Centropyge bicolor)
Overview
The Bicolor Angelfish (Centropyge bicolor), also known as the Two-colored or Oriole Angelfish, is a striking and popular member of the dwarf angelfish group. While visually stunning, they are known for being more challenging to keep than other dwarf angels.
- Max Size: Up to 15 cm.
- Lifespan: 5–13 years in the wild; captive longevity is often lower due to specific care needs.
- Difficulty: Moderate to Expert. They are often sensitive to water quality and can be difficult to acclimate to prepared foods.
Care Requirements
- Minimum Tank Size: 280 litres. They require space to swim and well-established rockwork.
- Water Parameters:
- Temperature: 22°C – 26°C.
- pH: 8.1 – 8.4.
- Salinity (Specific Gravity): 1.020 – 1.025.
- dKH: 8 – 12.S
- etup: A well-established aquarium (ideally 6+ months old) with plenty of live rock is essential. The rockwork provides grazing surfaces and necessary hiding spots to reduce stress.
Maintenance
- Filtration: High-quality, reliable filtration is required as they are sensitive to fluctuating water quality. A protein skimmer is highly recommended.
- Routine: Perform regular water changes (10–25% every 2–4 weeks) and monitor for any signs of disease (like lateral line erosion or parasites), as these fish can be prone to them.
Diet
- Type: Omnivore with a strong preference for sponges and algae.
- Feeding: Feed 2–3 times daily in small amounts.
- Recommended Foods: Include Spirulina, marine algae, frozen mysis shrimp, brine shrimp, and high-quality angelfish preparations containing sponge matter.
- Grazing: If they aren’t eating prepared foods, ensure the tank has ample natural algae growth on rocks to encourage them to forage.
Behavior and Compatibility
- Temperament: Semi-aggressive. They can be territorial, especially toward other dwarf angelfish or fish with similar shapes/colors.
- Reef Safety: Not recommended for delicate reef tanks. They are known to nip at stony and soft corals (especially LPS), clam mantles, and tubeworms.
- Tank Mates: Best kept with non-aggressive, peaceful fish like gobies, blennies, and some wrasses. Avoid keeping them with other Centropyge species unless the tank is very large (100+ gallons) with plenty of broken sightlines.
Reproduction
- Sexing: They are protogynous hermaphrodites, meaning all are born female and can transition to male. There is no easy external way to tell the sexes apart, though males may develop a darker line under the eye during courtship.
- Breeding: Very difficult to breed in home aquariums. They are pelagic spawners, and there is no documented success of them being bred in captivity on a commercial scale.
Tips
- Acclimation: Use a slow drip acclimation process (2–3 hours) to reduce stress.
- Quarantine: Because they are prone to parasites, a mandatory quarantine period is highly recommended before adding them to your display tank.
- Reduce Nipping: Providing a diet rich in sponges and algae can help reduce the frequency with which they nip at your corals, though it may not stop the behavior entirely.
- Establishment: Only add these fish to mature, stable tanks. They rarely thrive in brand-new, “sterile” setups.
Picture for illustrative purposes only. Either come in store to view available stock or request pictures to be sent to you.
Please Note: Due to variations within species resulting from age, region, sex, etc., the actual livestock may not look identical to the image. Approximate size range may also vary between individual specimens.
