Common name: Pink-tail trigger
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
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPufferfishTetraodontiformes
- FamilyTriggerfishBalistidae
- GenusTriggerfishMelichthys
- SpeciesPink-tail triggerMelichthys vidua (Richardson, 1845)
- SynonymsBalistes erythropterus (Fowler, 1946)Balistes nycteris Jordan & Evermann, 1903Balistes vidua Richardson, 1845Balistes vidua kamoharai Abe, 1958Melichthys nycteris (Jordan & Evermann, 1903)Melichthys vidula (Richardson, 1845)Oncobalistes erythropterus Fowler, 1946Pachynathus 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.