Common name: Black Angelfish

General Information

The Black Angelfish, scientifically known as Chaetodontoplus niger, is a striking species admired for its unique coloration and elegance. With a predominantly black body contrasted by white pelvic fins and vibrant yellow dorsal and caudal fins, this angelfish would be a captivating addition to any marine aquarium. Sadly, it is rarely—if ever—available in the trade. If you are fortunate enough to acquire a Black Angelfish, you can find care instructions here.

Care

Caring for the Black Angelfish requires attention to detail and a commitment to maintaining optimal water conditions. They thrive in large, well-established aquariums that mimic their natural reef environment. A tank of at least 500 liters is recommended to provide ample swimming space and to accommodate their territorial nature.

The aquarium should be aquascaped with plenty of live rock, offering hiding spots and grazing surfaces. Maintaining stable water parameters, including a cooler water temperature typical for the mesophotic zone, is crucial for their well-being. Regular water changes and efficient filtration systems are essential to keep the environment pristine.

Diet and Feeding

The Black Angelfish is an omnivore, with a diet that includes algae, sponges, and small invertebrates in the wild. In captivity, they should be offered a varied diet consisting of high-quality marine angelfish preparations, including frozen and live foods such as brine shrimp, mysis shrimp, and chopped seafood.

Feeding should occur two to three times daily, with portions adjusted based on the fish's size and activity level. Providing a balanced diet with occasional supplements of marine algae will help maintain their vibrant coloration and overall health.

Behavior and Compatibility

Black Angelfish are known for their semi-aggressive temperament, particularly towards conspecifics and other angelfish species. They are best kept as the only angelfish in a tank or with other species that are not similar in shape or color to avoid territorial disputes.

They can coexist with a variety of other marine species, provided the tank is large enough to accommodate their territorial nature. Suitable tank mates include larger, peaceful fish and invertebrates that do not compete for the same resources.

Habitat

The natural habitat of the Black Angelfish includes deep coral reefs and rocky areas in the Indo-Pacific region, particularly from Japan to the South China Sea, at depths ranging from 35 to 120 meters (120 to 400 feet). They prefer environments with abundant live rock and coral structures, where they can graze and find shelter. Replicating these conditions in captivity is essential for their health and well-being.