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Datasheet
| Minimum Tank Size | 5000 litres / 1320.86 US gallons |
| Maximum Size | 90.0cm / 35.43inches |
| Reef Compatible | Not reef safe |
| Temperament | Unknown |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description:
The Bicolour parrotfish, scientifically known as Cetoscarus bicolor, is distinguishable by its full-grown males displaying blue-green hues with pink markings. This species, belonging to the Scaridae family, can grow up to 90.0cm in size and is commonly found in the Indo-Pacific region, ranging from the Red Sea to the Tuamoto Islands.
Aquarium Suitability:
Typically considered unsuitable for home aquariums, the Bicolour parrotfish demands a very large tank when fully grown, usually around a minimum size of 5000 liters due to its substantial size. Known for its heavy appetite, this species is an effective algae eater and requires a tank with robust filtration to maintain water quality.
Care and Hardiness:
With an average hardiness level, the Bicolour parrotfish can be a challenging species to care for in captivity due to its large size and specific dietary needs. They are known to sleep in a mucus cocoon between rocks and thrive on diets consisting of macroalgae and microalgae.
Reef Suitability:
Not considered reef-safe, the Bicolour parrotfish may pose a risk to corals within a reef environment due to their feeding habits. They are more suited to coral aquariums where they can graze on algae present in the tank.
Aquarium Setup:
Setting up an aquarium for the Bicolour parrotfish should focus on providing ample space for swimming, along with a diverse selection of algae for grazing. Ensuring a stable water condition with a pH range of 8.1-8.4, a temperature between 22.2-25.6°C, and a salinity level of 1.020-1.025 is crucial for their well-being.
Behaviour:
The temperament of the Bicolour parrotfish is relatively unknown, but being a hermaphroditic species, they have the ability to change gender from female to male as needed within their social structure.
Feeding and Diet:
Their common diet consists of large and small polyp stone corals, macroalgae like seaweed, and microalgae such as spirulina. They are known to consume significant amounts of algae, particularly green hair algae and filamentous algae.
Habitat and Distribution:
In their natural habitat, Bicolour parrotfish are commonly found in regions ranging from the East Indian Ocean to the southern Great Barrier Reef. Their distribution spans from the Red Sea to the Izu Islands, showcasing their adaptability across various marine environments.