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Black Triggerfish (Melichthys niger)

Find Black Triggerfish across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Black Triggerfish
Photo: HockeyholicAZ · CC BY 2.0
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Where to buy Black Triggerfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Black Triggerfish

Melichthys niger is a large, robust triggerfish with an entirely black or very dark gray body and a slightly compressed laterally profile. The dorsal and anal fins are distinctly soft-rayed and elongated, and the caudal fin is rounded.

Key facts

Reef safety
Not Reef Safe
Care Level
Expert
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Diet Details
Feed a varied diet of high-quality meaty foods including frozen or fresh shrimp, squid, and other marine proteins. Offer 1-2 times daily in portions they will consume within a few minutes. Occasional vegetable matter may be taken but is not required.
Diet
carnivore
Temperament
Aggressive
Origin
Indo-Pacific from the Red Sea and East Africa to Hawaii and the central Pacific.
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding Schedule
1-2 times daily
Appearance
Melichthys niger is a large, robust triggerfish with an entirely black or very dark gray body and a slightly compressed laterally profile. The dorsal and anal fins are distinctly soft-rayed and elongated, and the caudal fin is rounded.
Max Size
20
Care Requirements
• Minimum 180 gallon tank; large, aggressive species requiring ample space • Hardy; tolerates varied water conditions but prefers 72-78°F, stable salinity • Feed meaty foods: frozen fish, squid, krill; strong bite and aggressive feeding behavior • Highly aggressive and territorial; keep singly or with very large, similarly-sized fish only • Provide hiding spots and robust décor; will destroy ornaments and harass tankmates

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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