Common name: Slingjaw wrasse

Scientific name: Epibulus insidiator (Pallas, 1770)
Female - Slingjaw wrasse (epibulus insidiator)  in the Red Sea
Slingjaw wrasse (Epibulus insidiator).Sling-jaw wrasse (Epibulus insidiator) in Japan

General information

The Slingjaw Wrasse, scientifically known as Epibulus insidiator, is a fascinating and unique fish species popular among marine aquarium enthusiasts. This species is known for its distinctive jaw mechanism, which can extend outward to capture prey, a feature that has intrigued both hobbyists and scientists alike. The Slingjaw Wrasse exhibits sexual dimorphism, with males typically displaying brighter colors and larger sizes than females.

Details

Recommended minimum tank volume
300 liter (79 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
50 cm (1′8″)
Care level
Moderate to easy Needs hiding spots & open space
Diet
Carnivore Prefers live food; can adapt to frozen
Social
Solo Territorial, best kept alone
Reefsafe
No May eat small fish & shrimp
Aggression
Semi aggresive Aggressive to small tank mates
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
    Slingjaw Wrasse
    Epibulus
  7. Species
    Slingjaw wrasse
    Epibulus insidiator (Pallas, 1770)
  8. Synonyms
    Epibulis insidiator (Pallas, 1770)
    Epibulus insidiator flava Bleeker, 1849
    Epibulus insidiator fusca Bleeker, 1849
    Epibulus insidiator fusca Bleeker, 1849
    Epibulus striatus Day, 1871
    Sparus insidiator Pallas, 1770

Care

Slingjaw Wrasses require spacious aquariums with plenty of swimming room and a well-established live rock setup to mimic their natural habitat. They are active swimmers and need open areas to accommodate their feeding behavior. A varied diet of meaty foods such as mysis shrimp, brine shrimp, and small fish is essential for their health. Due to their size and activity level, they are best suited for larger, mature systems.

Reproduction

In the wild, Slingjaw Wrasses are protogynous hermaphrodites, meaning they start life as females and can change to males as they mature. This change is often triggered by social cues or the absence of a dominant male. In the aquarium, breeding Slingjaw Wrasses is challenging and rarely observed, as it requires a large, well-established system with multiple individuals.

Habitat

Slingjaw Wrasses are found in a variety of marine environments, from shallow coral reefs to deeper lagoon and seaward reef slopes. They are adept at navigating through complex coral structures and are known to inhabit depths ranging from just below the surface to about 40 meters. Their natural distribution spans across the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific Ocean.