Genus

Common name: Angelfishes

Holacanthus Lacepède, 1802

Holacanthus is a genus of marine angelfish renowned for their vibrant colors and striking patterns. These fish are native to the Atlantic Ocean, with species distributed from the Caribbean to the eastern coast of South America. Holacanthus angelfish are particularly popular in the aquarium trade due to their stunning appearance and the dynamic presence they bring to any marine setup.

These angelfish can grow quite large, with some species reaching up to 40 cm (15 inches) in length. As such, they require spacious aquariums, typically no less than 500 liter (130 gallons), to accommodate their size and active swimming behavior. Holacanthus species are known for their bold personalities and can be territorial, especially in smaller tanks or when housed with other angelfish. It's essential for hobbyists to carefully plan tank mates and environment to minimize aggression.

In terms of care, Holacanthus angelfish thrive in well-established aquariums with plenty of live rock, which provides not only shelter but also grazing opportunities, as these fish are omnivorous and enjoy picking at algae and small invertebrates. A varied diet including high-quality marine pellets, frozen foods, and fresh greens will help maintain their health and vibrant coloration.

One of the most popular species within this genus is the Holacanthus ciliaris, which is admired for its electric blue and yellow hues. While these fish are captivating, they are best suited for experienced aquarists due to their specific care requirements and potential for aggressive behavior. Understanding their natural habitat and social dynamics is crucial for successfully keeping Holacanthus angelfish in a home aquarium.