Common name: Blackeye thicklip

Scientific name: Hemigymnus melapterus (Bloch, 1791)
Blurry photo of a Thicklip Wrasse.Hemigymnus melapterus in a sea aquariumBlackeye Thicklip Wrasse (Hemigymnus melapterus)

General information

The Blackeye Thicklip, scientifically known as Hemigymnus melapterus, is a striking fish species that adds both color and activity to a marine aquarium. This species is known for its robust body, vibrant yellow and white coloration, and the distinctive black spot near its eyes, which gives it its common name.

Details

Recommended minimum tank volume
500 liter (130 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.4
Average size
45 cm (1′6″)
Care level
Moderate to difficult Needs large tank, can be territorial
Diet
Omnivore Varied diet incl. algae, meaty foods
Social
Solo Territorial, best kept alone
Reefsafe
No May nip at corals and clams
Aggression
Semi aggresive Aggressive, especially to conspecifics
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
    Thicklip wrasse
    Hemigymnus
  7. Species
    Blackeye thicklip
    Hemigymnus melapterus (Bloch, 1791)
  8. Synonyms
    Cheilolabrus magnilabris Alleyne & Macleay, 1877
    Cheilolabrus magnilabrus Alleyne & Macleay, 1877
    Halichoeres melapterus (Bloch, 1791)
    Hamigymnus melapterus (Bloch, 1791)
    Hemigymnus melanopterus Günther, 1862
    Hemigymnus melapturus (Bloch, 1791)
    Julis beraber Montrouzier, 1857
    Julis boryii Lesson, 1831
    Labrichthys bicolor Day, 1871
    Labrus malapterus Bloch, 1792
    Labrus melampterus Bloch & Schneider, 1801
    Labrus melanopterus Forster, 1795
    Labrus melapterus Bloch, 1791
    Sparus niger Lacepède, 1802
    Tautoga dimidiatus Bleeker, 1849
    Tautoga melapterus Valenciennes, 1839

Care

Caring for Blackeye Thicklips requires a spacious aquarium due to their size and active swimming behavior. They are generally peaceful but can be territorial with their own kind or similar-looking species. A varied diet of meaty foods, including frozen and live offerings, will keep them healthy and their colors bright.

Reproduction

In the wild, Blackeye Thicklips are egg-layers that exhibit complex breeding behaviors. However, breeding them in captivity is challenging and rarely achieved by hobbyists. Their social dynamics and spawning rituals can be fascinating to observe in larger, species-specific setups.

Habitat

Blackeye Thicklips are found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They prefer reef environments, often seen in lagoons and on outer reef slopes, where they can be found in small groups or pairs.