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Datasheet
| Minimum Tank Size | 264 litres / 69.74 US gallons |
| Maximum Size | 10.2cm / 4.02inches |
| Reef Compatible | With Caution |
| Temperament | Semi-aggressive |
| Care Description | Moderate |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Half Black Angelfish, scientifically known as Centropyge vroliki, displays a striking appearance with its distinct half black and half pearled coloration. Belonging to the Pomacanthidae family, this species can reach a maximum size of around 10.2cm.
Aquarium Suitability
For optimal care, the Half Black Angelfish requires a tank of at least 70 gallons with ample hiding spots. It is advised to keep only one Half Black Angelfish in the tank due to its semi-aggressive temperament. While not particularly reef-friendly, as it may consume soft coral polyps, clam mantles, and zoanthids, it can be kept in a reef setup with caution.
Care and Hardiness
Considered of moderate care level, this angelfish species thrives in water conditions with a pH range of 8.1-8.4, a carbonate hardness of 8-12 dKH, and a specific gravity of 1.020-1.025.
Reef Suitability
Due to its diet preferences and potential for nipping at corals, the Half Black Angelfish is not an ideal choice for a reef tank. However, with careful monitoring and appropriate tank mates, it can coexist in a reef environment.
Aquarium Setup
When setting up the aquarium for a Half Black Angelfish, provide plenty of live rock for grazing and creating hiding spaces. Maintaining stable water parameters within the recommended ranges is crucial for the well-being of this species.
Behaviour
This angelfish species exhibits a semi-aggressive temperament, especially towards conspecifics or similar-shaped fish. It is essential to monitor their interactions and provide appropriate hiding spots to reduce aggression levels.
Feeding and Diet
Being an omnivore, the diet of the Half Black Angelfish should consist of a variety of foods such as Spirulina, marine algae, mysis shrimp, and other meaty fare. Adequate feeding and nutrition are essential for maintaining this species' health and vibrancy.
Dimorphism and Captive Reproduction
The Half Black Angelfish does not display distinguishable color differences between males and females. Additionally, breeding this species in an aquarium setting is notably challenging, requiring specialized conditions and care to successfully reproduce.
Habitat and Distribution
In the wild, the Half Black Angelfish can be found in the waters of the Indo-Pacific region. Its natural habitat includes coral reefs and areas with plentiful hiding spots, where it can graze on algae and small invertebrates.