Common name: Wrasse

General information

The Dusky Wrasse, scientifically known as Halichoeres marginatus, is a vibrant and active fish that adds both color and dynamism to a saltwater aquarium. This species is known for its striking coloration, which changes significantly from juvenile to adult stages. Juveniles typically exhibit a yellow-brown color with a dark margin along the dorsal fin, while adults develop a more complex pattern with green, blue, and pink hues.

Care

Dusky Wrasses are known for their hardiness and adaptability, making them suitable for both novice and experienced aquarists. They thrive in well-established aquariums with plenty of live rock for hiding and grazing. A sandy substrate is also important as these wrasses may bury themselves for protection or while sleeping. They are carnivorous, feeding on a variety of small invertebrates and should be provided with a diet that includes frozen or live meaty foods.

Reproduction

In the wild, Halichoeres marginatus exhibits protogynous hermaphroditism, where individuals start life as females and can change to males as they mature. In the aquarium setting, breeding is less common, but with a group consisting of a single male and several females, there is potential for natural social hierarchy and breeding behavior.

Habitat

The Dusky Wrasse is found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They are commonly associated with coral reefs, where they can be seen darting among the corals and rocks. They prefer areas with abundant coral growth and clear waters, typically at depths ranging from shallow lagoons to slopes extending beyond 30 meters.