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 size. Request a video of the actual specimen to see the full appearance. Two units remain in stock.
| Size | S (1″ to 2″) |
|---|---|
| Species | Odonus niger |
| Recommended Tank Size | 75 gallons minimum |
| Mature Size | Up to 20 inches |
FAQ
Is this fish suitable for a reef tank?
This fish is reef compatible with caution. It may damage soft corals or anemones, so it should not be kept in a tank with delicate reef inhabitants.
What is the expected growth size of this fish?
The mature size of this fish can reach up to 20 inches. In the provided size range, it grows from 1 to 2 inches initially.
Can beginners keep this fish?
Yes, this species is rated as beginner-friendly in terms of care requirements, though it is semi-aggressive and needs a properly sized tank.



Stephen Davies –
The Niger Triggerfish is a striking addition to my tank. Its vibrant colors and long streamers are impressive. I’ve kept it in a 75-gallon tank with some hard corals, and it’s been active without causing major issues. I recommend it for those who want a bold, colorful fish with manageable care needs.
Trevor McDonald –
First time keeping a triggerfish, and this one is definitely a visual highlight. It’s semi-aggressive but not overly so. I’ve observed it gently interacting with rocks and not attacking other fish. The coloration is vivid, and the streamers are long and flowing.
Penelope Ince –
The fish looks beautiful in the tank. I’m cautious about keeping it with soft corals, as the description warns. It’s active and seems healthy. I’d suggest watching its behavior closely in the first few weeks to ensure compatibility.