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Girdled Fairy Wrasse

Cirrhilabrus balteatus

The Girdled Fairy Wrasse is an active and colorful marine wrasse endemic to the Marshall Islands, requiring a covered aquarium.

Family
Labridae
Origin
Western Central Pacific: Marshall Islands.
Origin
Tropical oceans and reefsExtra-Amazon South America
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

22 °C - 27 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

Middle

Adult size

10 cm

Species description

Geographic Origin and Biotope: Western Central Pacific: Marshall Islands. Found in deep lagoons and seaward reefs at depths ranging from 7 to 22 meters.

Taxonomy and Morphology: Member of the family Labridae. Grows up to 10 cm. Characterized by long, flowing pelvic fins in mature males.

Social Behavior: Peaceful and highly active. Dominant males form harems of females. Spends the day swimming in the middle water column searching for food.

Coloration and Sexual Dimorphism: Males have a striking bright yellow-orange band or "girdle" on the flanks against a purple or greenish body. Females are solid reddish-pink.

Care, breeding and tankmates

Aquarium Setup: Minimum 250 liters. Requires a spacious swimming area and plenty of live rock with caves to simulate its deep-reef habitat.

Diet and Feeding: Carnivore. Planktivorous feeder. Offer frozen mysis, brine shrimp, krill, and copepods at least twice daily to support high activity levels.

Water Quality: Keep temperature at 22-27°C, pH 8.1-8.4, salinity 1.020-1.025 SG. High oxygen level and efficient filtration are required.

Compatibility and Tankmates: Ideal for peaceful community reefs. Keep with non-aggressive tankmates. Avoid housing multiple males together.

Aquarium Reproduction: Broadcast pelagic spawner. Spawns in open water column. Captive breeding has not been successfully achieved in home aquariums.

Risks and Diseases: High jumping risk; a tight lid or screen cover is mandatory. Susceptible to stress-induced diseases if harassed by tankmates.

Fish profile

Temperament
Peaceful
Diet
Carnivore
Tank level
Middle
Minimum group
1
Adult size
10 cm
Minimum tank volume
250 L
GH
n/a
KH
8 dKH - 12 dKH
TDS
n/a
Conductivity
n/a
Sex ratio
One male with a group of females (harem)
Feeding frequency
Feed 2-3 times daily
Bioload
Medium
Flow
Moderate
Jump risk
Covered tank required
Reproduction
Pelagic spawner. Spawning occurs at dusk in the water column. Captive breeding is extremely difficult and rarely documented.
Compatibility & tankmates
Peaceful. Males can be aggressive towards other flasher or fairy wrasses. Keep only one male per aquarium. Reef-safe.

Ecological Estimates & Biological Models

Trophic level
3.4 ± 0.45 se
Resilience
High (less than 15 months)
Phylogenetic uniqueness (PD50)
0.5
Bayesian Length-Weight
a = 0.01072, b = 3.03
VulnerabilityLow vulnerability (10 / 100)

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Other recommended species with similar care requirements and water parameters.

Last updated: 06/12/2026
Girdled Fairy Wrasse (Cirrhilabrus balteatus) Care Guide & Tank Setup | Atlarium