Common name: Blunt-head parrotfish

General information

The Steephead Parrotfish, scientifically known as Chlorurus microrhinos, is a vibrant and sizeable member of the parrotfish family. It is known for its distinct bulbous forehead, especially prominent in males, and its ability to change colors throughout different stages of life. Juveniles typically exhibit a duller coloration compared to the striking blues, greens, and pinks seen in adults.

These fish play a crucial role in the health of coral reefs by grazing on algae and dead coral, which helps prevent algal overgrowth and promotes coral growth. Their beak-like teeth are adapted for scraping algae and are strong enough to break off pieces of coral, which are then ground up by pharyngeal teeth and excreted as sand, contributing to the sandy substrate of their habitats.

Care

Steephead Parrotfish require large, mature aquariums with plenty of live rock for grazing and hiding. Due to their size and feeding habits, they are best suited for fish-only or large reef tanks where their natural behavior of scraping surfaces will not harm delicate corals. They are active swimmers and need ample space to roam.

A varied diet that includes algae-based foods and occasional meaty offerings will keep them healthy. It's important to note that they can be territorial, so tank mates should be chosen with care to avoid aggression.

Reproduction

In the wild, Steephead Parrotfish are known for their complex social structures and reproductive behaviors, including harems with a dominant male. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. Reproducing these fish in a home aquarium setting is extremely challenging and rarely achieved.

Habitat

Native to the Indo-Pacific region, Steephead Parrotfish are commonly found in coral-rich areas of lagoons and seaward reefs. They prefer depths ranging from shallow waters to about 30 meters. Their distribution spans from the Red Sea and East Africa across to the Central Pacific.