Common name: Whitebelly wrasse

Scientific name: Halichoeres leucoxanthus Randall & Smith, 1982
A juvenile Yellow and Purple Wrasse, Halichoeres leucoxanthus, also known as the Four Spot or White WrasseYellow Wrasse (Halichoeres chrysus)
Yellow and Purple Wrasse in AquariumA juvenile Yellow and Purple Wrasse, Halichoeres leucoxanthus, also known as the Four Spot or White Wrasse

General information

The Yellow-axil Wrasse, Halichoeres leucoxanthus, is a small and colorful marine fish that is popular among reef aquarium enthusiasts. It is known for its vibrant yellow coloration on the upper part of the body and a white to pale yellow underbelly. As a member of the wrasse family, it exhibits the typical elongated body shape and is a lively addition to any reef tank.

Details

Recommended minimum tank volume
150 liter (40 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
12 cm (5″)
Care level
Moderate to easy Thrives in established tanks
Diet
Carnivore Enjoys mysis and brine shrimp
Social
Solo Can be territorial
Reefsafe
Yes
Aggression
Semi aggresive May chase small fish
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Wrasses
    Labridae
  6. Genus
    Wrasse
    Halichoeres
  7. Species
    Whitebelly wrasse
    Halichoeres leucoxanthus Randall & Smith, 1982

Care

Yellow-axil Wrasses are relatively hardy and can adapt to life in captivity if provided with a well-established aquarium. They require a tank with plenty of live rock for hiding and foraging. This species is known for its beneficial habit of eating pests such as bristle worms and flatworms, making it a valuable cleaner fish. A varied diet of meaty foods, including frozen mysis shrimp and brine shrimp, will keep them healthy and maintain their bright coloration.

Reproduction

In the wild, Halichoeres leucoxanthus is a protogynous hermaphrodite, meaning individuals start life as females and can change to males as they mature. In the aquarium, breeding is less common, but with a stable environment and proper care, it is possible to observe their fascinating mating rituals and courtship behavior.

Habitat

The Yellow-axil Wrasse is native to the Western Pacific, where it can be found in coral-rich areas of lagoons and outer reefs. They are typically seen at depths ranging from shallow waters to about 30 meters. In the aquarium, replicating their natural environment with a mix of sandy substrate and rocky crevices is ideal for their well-being.