Common name: Blue devil

General information

The Blue Damselfish, Chrysiptera cyanea, is a vibrant and active fish that adds a splash of color to any saltwater aquarium. Known for its striking blue hue, this species is a favorite among reef hobbyists. It is relatively small, reaching up to about 6 centimeters in length, and is known for its hardiness and adaptability to aquarium life.

Care

Chrysiptera cyanea is a hardy species that can adapt to a range of water conditions, making it suitable for beginners. It thrives in well-established aquariums with plenty of rockwork and hiding spaces. While it can be territorial, especially towards conspecifics, providing ample space can minimize aggression. A varied diet of meaty foods, algae, and quality flake or pellet foods will help maintain its health and coloration.

Reproduction

In the wild, Blue Damselfish are known to be oviparous, with distinct pairing during breeding. Males prepare and guard nesting sites where females lay eggs. The males then protect and aerate the eggs until they hatch. While breeding in home aquariums is less common, it is possible with optimal conditions and careful attention to water quality.

Habitat

The natural habitat of the Blue Damselfish includes coral reefs and lagoons in the Indo-Pacific region. They are commonly found at depths from shallow waters to about 15 meters, where they swim among stony and soft corals. Their geographical distribution spans from East Africa to the central Pacific, including the Great Barrier Reef, Fiji, and Samoa.