Flame wrasse

Geographical Origin and Habitat: This species is endemic to the Hawaiian Islands and Johnston Atoll in the central Pacific Ocean. It primarily inhabits deep seaward reefs and outer reef slopes, usually at depths ranging from 20 to 100 meters, preferring areas with strong currents and mixed substrates of coral rubble and sand, where they find shelter among hard corals.

Taxonomy and Morphology: Cirrhilabrus jordani belongs to the Labridae family, under the subfamily Cheilininae. It exhibits the typical elongated and slightly compressed body shape of fairy wrasses, with large, prominent eyes and well-developed dorsal and anal fins. Adults reach a maximum length of approximately 10 cm.

Social Behavior: It is an active, gregarious fish that lives in harems composed of a single dominant male and several females. It is peaceful toward other species, but males display strong intraspecific aggression to defend their territory and harem, especially during courtship and spawning.

Coloration and Sexual Dimorphism: Sexual dimorphism is highly pronounced. Adult males feature brilliant red and golden-yellow coloration, with a bright yellow dorsal fin and iridescent neon blue or purple stripes. Females are predominantly red or pink with a lighter belly, lacking the intense colors and elaborate fins of dominant males.

Aquarium Setup: Requires an aquarium of at least 200 liters, well-established and equipped with a tight-fitting lid, as they are exceptional jumpers when startled. The aquascape should include plenty of live rock forming caves and crevices for shelter, while still providing ample open space for swimming in the water column. A fine sand substrate is highly recommended.

Diet and Feeding: It is a carnivorous micro-predator that feeds mainly on zooplankton in the wild. In the aquarium, it readily accepts frozen foods such as mysis, brine shrimp, finely chopped krill, and copepods. It also acclimates well to high-quality dry pellets or flakes, which should be enriched with vitamins to preserve their vibrant coloration.

Water Quality: Stable parameters are essential: temperature between 23°C and 26°C, pH between 8.1 and 8.4, salinity/specific gravity between 1.020 and 1.025, and nitrate and phosphate levels kept close to zero. Strong water movement and an efficient protein skimmer are recommended to maintain high oxygen levels and keep organic waste low.

Compatibility and Cohabitation: It is an ideal reef-safe fish, as it does not harm corals or sessile invertebrates. It coexists well with other peaceful reef fish such as anthias, gobies, blennies, and surgeonfish. Avoid housing it with other males of the same species or similar-looking Cirrhilabrus species to prevent territorial fighting.

Aquarium Breeding: Breeding in home aquariums is extremely rare and complex. They are protogynous hermaphrodites, meaning all individuals are born female, and the dominant female changes sex to male if the harem male is lost. Courtship involves spectacular nuptial displays (flashing) by the male before spawning in the open water column.

Risks and Diseases: Besides their tendency to jump out of the tank when frightened, they are susceptible to external parasites such as Oodinium or marine ich (Cryptocaryon irritans). Transport stress or introduction to an immature system can weaken their immune system, making a quarantine period highly recommended before introduction.