Common name: domino damsel

General information

The Three-spot Dascyllus, also known as the Domino Damselfish or Domino Damsel, is a small and robust marine fish that is popular among aquarists for its striking black body with white spots. The species is named for the three prominent white spots that adorn its body: one on the forehead, one on the dorsal fin, and one at the base of the tail.

Care

Domino Damselfish are hardy and adaptable, making them suitable for both beginner and experienced aquarists. They thrive in well-established aquariums with plenty of rockwork and hiding spaces. While they are not picky eaters, a varied diet of meaty foods, algae, and high-quality commercial feeds will help maintain their health and coloration.

Reproduction

In the wild, Dascyllus trimaculatus forms breeding pairs or small groups. They are oviparous, with females laying eggs on substrates such as coral branches. Males then guard and aerate the eggs until they hatch. In captivity, breeding can be challenging but is possible with careful attention to water quality and diet.

Symbiosis

Three-spot Dascyllus juveniles often associate with large sea anemones, a behavior that provides them with protection from predators. This association is similar to that of clownfish, but as they mature, they typically become less dependent on anemones and may leave to form their own territories.

Habitat

This species is commonly found in the Indo-Pacific region, inhabiting coral reefs and lagoons. They prefer areas with strong water movement and are often observed living in close proximity to branching corals like Acropora.