Common name: Longnose parrotfish

General information

The Harlequin Parrotfish, scientifically known as Hipposcarus harid, is a vibrant and active member of the parrotfish family. These fish are known for their striking coloration and significant role in the health of coral reefs. They exhibit sexual dimorphism, with males typically displaying more vivid colors compared to the females. As they grow, they can undergo a color transformation, known as 'phase shifting,' from their initial phase to a terminal phase with different color patterns.

Care

Harlequin Parrotfish require large, well-established aquariums due to their size and active swimming behavior. They are herbivorous, feeding primarily on algae, and their beak-like teeth allow them to scrape off algae from hard surfaces. It's crucial to provide them with plenty of live rock for grazing and hiding. Due to their feeding habits, they can be quite destructive to coral, so they are not recommended for reef aquariums.

Reproduction

In the wild, Harlequin Parrotfish are known to form harems consisting of one dominant male and several females. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. The larvae then drift as part of the plankton before settling down and growing into juveniles.

Habitat

Harlequin Parrotfish are found in tropical and subtropical waters of the Indo-Pacific region. They inhabit coral reefs, often seen grazing on algae-covered surfaces. They play a crucial role in the ecosystem by preventing algal overgrowth, which can otherwise smother corals and disrupt the balance of the reef environment.