Lineatus Fairy Wrasse

The Lineatus Fairy Wrasse (Cirrhilabrus lineatus) is a species of reef fish in the wrasse family (Labridae), native to the western Pacific Ocean. Renowned for its striking coloration and peaceful temperament, it is a prized species in marine aquaria and an indicator of coral reef health in the wild.

Key facts

• Scientific name: Cirrhilabrus lineatus

• Family: Labridae

• Habitat: Coral reefs (depths 20–50 m)

• Distribution: Great Barrier Reef, Coral Sea, Papua New Guinea

• Adult size: Up to 10–12 cm

Description

Males of the Lineatus Fairy Wrasse display vivid hues of blue, orange, yellow, and purple, often accentuated during courtship. Females and juveniles are smaller and less colorful, with pinkish or pale tones. Like many wrasses, this species exhibits sexual dimorphism and can change sex from female to male as part of its social structure.

Habitat and behavior

This wrasse inhabits outer reef slopes and drop-offs, favoring areas with strong water movement and abundant coral cover. It is diurnal and highly social, forming small harems led by a dominant male. Individuals feed primarily on zooplankton carried by currents above the reef.

Reproduction and life cycle

• C. lineatus* practices haremic breeding, where a single male guards a group of females.

• Spawning occurs near dusk, releasing eggs that drift with plankton until hatching.

• Sequential hermaphroditism allows the largest female to transition into a male when needed, ensuring social balance within the group.

Aquarium care

In captivity, the Lineatus Fairy Wrasse is valued for its hardiness and vibrant coloration. It requires a well-oxygenated, covered reef aquarium of at least 75 gallons, as individuals are known jumpers. A peaceful community with non-aggressive tankmates and live rock structures helps mimic its natural environment.

Conservation status

The species is not currently listed as threatened, but its dependence on healthy coral reef ecosystems makes it vulnerable to habitat degradation and climate change impacts such as coral bleaching. Sustainable collection practices are important for maintaining wild populations.