Common name: Pink-tail trigger

Scientific name: Melichthys vidua (Richardson, 1845)
Pinktail Durgon (Melichthys Vidua), Near Kona; Island Of Hawaii, Hawaii, United States Of AmericaPinktail Triggerfish, melichthys vidua
Pinktail Durgon (Melichthys Vidua); Kona, Island Of Hawaii, Hawaii, United States Of AmericaPinktrig

General information

The Pinktail Triggerfish, scientifically known as Melichthys vidua, is a vibrant and dynamic species popular among marine aquarists. This species is known for its distinctive pink tail and the contrasting dark body with blue accents along the fins and head. Triggerfish in general are named for their unique dorsal spine mechanism, which they use to lock themselves into rock crevices for protection.

Details

Recommended minimum tank volume
750 liter (200 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 ample swimming space
Diet
Omnivore Varied diet incl. algae
Social
Solo Can be territorial
Reefsafe
No May nip at corals
Aggression
Semi aggresive May show dominance
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Pufferfish
    Tetraodontiformes
  5. Family
    Triggerfish
    Balistidae
  6. Genus
    Triggerfish
    Melichthys
  7. Species
    Pink-tail trigger
    Melichthys vidua (Richardson, 1845)
  8. Synonyms
    Balistes erythropterus (Fowler, 1946)
    Balistes nycteris Jordan & Evermann, 1903
    Balistes vidua Richardson, 1845
    Balistes vidua kamoharai Abe, 1958
    Melichthys nycteris (Jordan & Evermann, 1903)
    Melichthys vidula (Richardson, 1845)
    Oncobalistes erythropterus Fowler, 1946
    Pachynathus nycteris Jordan & Evermann, 1903

Care

Pinktail Triggerfish require a spacious aquarium with plenty of room to swim and areas to hide. They are known to be somewhat aggressive, particularly towards smaller fish and invertebrates, so tankmates should be chosen with care. A varied diet of meaty foods, including shrimp, squid, and fish, will keep them healthy and their colors vibrant.

Reproduction

In the wild, Pinktail Triggerfish are known to be solitary nesters. Males prepare and guard the nesting sites, and females lay eggs that are then fertilized by the male. In the aquarium setting, breeding is less common, but with the right conditions and a well-established pair, it is possible.

Habitat

Melichthys vidua is found in the Indo-Pacific region, from East Africa to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, and south to New Caledonia and the Austral Islands. They typically inhabit outer reef slopes and drop-offs, often seen at depths where light still penetrates but can range from shallow lagoons to deeper waters.