Cirrhilabrus roseafascia is a deep-reef fairy wrasse from the southwestern Pacific, recorded around New Caledonia, the Coral Sea, and the northern Great Barrier Reef. In the wild it occupies coral-and-rubble reefs between roughly 30 and 155 meters, where it is often encountered in small groups. The common name refers to the deep-pink stripe running along the back. Males are pinkish-red with a paler belly, yellow dorsal and anal fins, elongated central tail rays, and a purple spot on the pelvic fins. Females are a softer red with a white-spotted band across the upper body, while juveniles are dark red with three white lines and a black spot on the caudal peduncle.

Adult housing should begin at 75 gallons, with abundant live rock arranged to create shaded crevices and caves alongside a generous stretch of open midwater for cruising. Because this species originates well below the reef crest, subdued lighting and reliably shaded retreats help it settle into the brighter conditions of a display aquarium. A tightly secured lid or screen top is not optional: fairy wrasses are capable jumpers, and a deep-water fish that bolts when startled will find any gap. Unlike some wrasse groups, this species does not bury itself in sand at night, instead tucking into rockwork to sleep, so a reef structure with plenty of interior gaps matters more than substrate depth.

Introduce it to an established, biologically mature system rather than a newly cycled tank. A settled aquarium with stable water chemistry and a resident plankton population suits its feeding habits and gives a moderately demanding new arrival the best chance of adjusting quickly.

On the reef, this wrasse is a zooplankton feeder, picking small drifting prey from the water column above coral and rubble. Replicate that in captivity with small meaty foods: mysis shrimp, enriched brine shrimp, finely chopped shrimp, squid, fish flesh, and clam, rounded out with quality marine pellets or flakes sized for a small-mouthed carnivore. Variety matters more than volume, since each meal is small.

Feed two to three times daily. Freshly introduced specimens frequently hide among the rocks for several days before venturing out, which is normal rather than cause for alarm. Keep the surroundings calm, avoid boisterous tankmates during this window, and present food in the water column where it drifts past the rockwork so the fish can begin feeding from cover before moving fully into the open.

Mysis Shrimp Enriched Brine Shrimp Finely Chopped Shrimp Chopped Squid Chopped Clam Fish Flesh Marine Pellets Marine Flakes
Once acclimated, the Rose Band Fairy Wrasse is an active, peaceful midwater swimmer that spends much of the day patrolling the open space above the reef structure. Wild individuals have been observed in small groups, and captive specimens generally do well alongside peaceful community fish of similar disposition. Males can turn territorial toward other fairy wrasses and toward competing zooplankton feeders, so combining similar males calls for substantial swimming room and deliberate planning. At night the fish retreats into a rock crevice rather than burrowing.

This species is reef safe. Aquarium references classify it as coral-safe and invertebrate-safe, with no documented pattern of damage to sessile invertebrates or predation on ornamental shrimp, crabs, snails, or clams. Its carnivorous appetite is directed at zooplankton-sized prey rather than coral tissue or algae, which makes it a comfortable fit for mixed reef displays where grazing or coral-nipping fish would be a liability.

FAQ

Frequently Asked Questions

About the Rose Band Fairy Wrasse

  • How large an aquarium does an adult Rose Band Fairy Wrasse need?
    Plan on a minimum of 75 gallons for an adult. That footprint supplies the open midwater lane this active swimmer uses along with room for substantial rockwork.
  • Does this wrasse require a covered aquarium?
    Yes. Fairy wrasses are known jumpers, and a deep-water species that bolts when startled needs a tightly secured lid or screen top at all times.
  • What should I do if a new specimen hides and refuses food?
    Hiding for several days after introduction is typical. Keep the tank environment calm and offer small suspended foods near the rockwork two to three times daily until the fish begins feeding in open water.