Pinktail Triggerfish Care Guide

Melichthys vidua · Saltwater Triggerfish

Pinktail Triggerfish
AI-generated illustration of Pinktail Triggerfish
Adult size
~11.8″ (30 cm)
Suggested tank
125+ gal
Placement
Middle to Lower
Flow
Medium

What Pinktail Triggerfish look like

The Pinktail Triggerfish, scientifically known as Melichthys vidua, exhibits a robust and laterally compressed body, reaching a maximum adult size of approximately 12 inches (30 cm). Its coloration is characterized by a vibrant blue-green body adorned with a distinctive pinkish-orange tail and a prominent yellow stripe running along the dorsal fin. Sexual dimorphism is subtle, with males typically displaying more vivid coloration during breeding periods. This species possesses a powerful jaw equipped with strong, conical teeth adapted for crushing hard-shelled prey. Notably, the Pinktail Triggerfish features a unique trigger mechanism on its dorsal fin, allowing it to lock itself into crevices for protection against predators, showcasing its defensive adaptations.

Behavior & temperament

Pinktail Triggerfish are generally solitary or found in small groups, displaying a hierarchical social structure where larger individuals dominate feeding areas. They are primarily benthic feeders, often observed foraging near the substrate. During the breeding season, males engage in elaborate courtship displays, which include circling and color changes to attract females. Their temperament can be described as semi-aggressive, particularly when defending territory or during breeding, making them suitable for larger community tanks with caution. They exhibit territorial behavior, especially towards similar species.

Diet & feeding

In the wild, Pinktail Triggerfish primarily consume a diet of crustaceans, mollusks, and benthic invertebrates. In captivity, they require a varied diet that includes high-quality pellets, frozen or live foods such as shrimp and shellfish to maintain optimal health.

Behind the name

The genus name 'Melichthys' is derived from the Greek words 'meli' meaning honey and 'ichthys' meaning fish, while the species name 'vidua' is Latin for 'widow', possibly referring to the fish's solitary nature.

Plan your tank

Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.

Keeping Pinktail Triggerfish?

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