Common name: blacktailed humbug

General information

The Blacktail Dascyllus, Dascyllus melanurus, is a small and attractive damselfish that is popular among reef aquarium enthusiasts. This species is known for its striking coloration, with a white body, three vertical black stripes, and a distinct black tail. They are relatively hardy and can be a good choice for both novice and experienced aquarists.

Care

Blacktail Dascyllus are relatively easy to care for but can be territorial, especially in smaller tanks. They thrive in well-established aquariums with plenty of live rock for hiding and grazing. A varied diet of meaty foods, algae, and high-quality commercial feeds will help maintain their health and coloration. It's important to monitor their behavior, as they can become aggressive towards other tank mates.

Reproduction

In the wild, Blacktail Dascyllus form breeding groups, and a dominant male will mate with several females. In the aquarium, they may spawn if conditions are right, laying eggs on substrates or in crevices. The male typically guards the eggs until they hatch.

Habitat

Native to the Indo-Pacific region, Blacktail Dascyllus are found in coral-rich areas and lagoons, often associating with branching corals like Acropora. They prefer shallow waters but can be found at depths up to 15 meters.

Geographical distribution includes areas from East Africa to the central Pacific, north to southern Japan, and south to Australia and New Caledonia.