Common name: Lamark's angelfish

General information

Lamarck's Angelfish, scientifically known as Genicanthus lamarck, is a species of marine angelfish belonging to the family Pomacanthidae. This species is notable for its sexual dimorphism, where males and females exhibit different coloration and fin shapes. Males typically have a yellowish to blue body with a distinctive black stripe running from the eye to the base of the tail, while females are generally paler with a series of vertical black bars along their sides.

These angelfish are popular in the aquarium trade due to their graceful appearance and relatively peaceful demeanor. They are also one of the few angelfish that are considered reef-safe, as they do not tend to nip at corals or clams.

Care

Lamarck's Angelfish require a well-established aquarium with plenty of swimming space and live rock for grazing. They are not as aggressive as some other angelfish species, making them suitable for a community tank with other non-aggressive species. A varied diet of marine algae, spirulina, mysis shrimp, and other high-quality angelfish preparations will help maintain their health and coloration.

Reproduction

In the wild, Lamarck's Angelfish form harems consisting of one male and several females. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. In the aquarium, breeding is less common, but with a large enough tank and a well-maintained environment, it is possible to observe their natural spawning behavior.

Habitat

Lamarck's Angelfish are found in the Indo-Pacific region, from the Maldives to the Philippines, and as far south as Australia. They inhabit coral reefs and lagoons, typically at depths ranging from 5 to 30 meters. They prefer areas with strong water movement and are often seen grazing on algae growing on the reef.