Odonus niger – Niger Triggerfish
Reef Compatible – With Caution
Care Level – Beginner
Disposition – Semi-aggressive
Min. Tank Size – 75 gallons
Mature Size – 20 inches
The show specimens are truly stunning, featuring fantastic coloration. The streamers alone can reach 6 inches in length, and the fish can grow up to one foot in total length. Request a video of the actual specimen to see the full appearance. Two units remain in stock.
| Size | Range |
|---|---|
| Adult Length | 6″ to 7″ (initial size) |
| Mature Size | Up to 20 inches |
FAQ
Is this fish suitable for a reef tank?
This fish is reef compatible but with caution. It may damage soft corals and polyps, so it should not be kept in a tank with delicate reef inhabitants.
What is the recommended tank size for this fish?
A minimum tank size of 75 gallons is required to provide adequate space and stability for this species.
How long does it take for this fish to reach maturity?
The fish grows to a mature size of 20 inches over several years, with initial size ranging from 6 to 7 inches.



Heather May –
The Niger Triggerfish is a striking addition to my tank. The coloration is vibrant and the streamers are impressive. I’ve kept it in a 75-gallon tank with some hard corals and it’s been peaceful so far. It’s not aggressive, but I do monitor it closely around soft corals.
Nathan Grant –
First time keeping a triggerfish and this one is a standout. The size is within the expected range and it looks great in the tank. I’ve noticed it’s semi-aggressive, so I’ve kept it away from small invertebrates. Overall, a beautiful and unique fish.
Jasmine Bailey –
The fish arrived healthy and looks like the photos. I’m still adjusting to its behavior. It doesn’t seem to harm the hard corals, but I’ve seen it nipping at a soft coral once. I’ll keep an eye on it and avoid placing it near delicate life.