Sargassum Angler (Histiophora histrio)
The Sargassum Angler is a reef-compatible fish suitable for intermediate aquarists. It exhibits an aggressive disposition and requires a minimum tank size of 50 gallons to thrive. When mature, it can grow up to 15 inches in length.
Specifications
| Feature | Detail |
|---|---|
| Reef Compatible | Yes |
| Care Level | Intermediate |
| Disposition | Aggressive |
| Minimum Tank Size | 50 gallons |
| Mature Size | 15 inches |
FAQ
Is the Sargassum Angler safe to keep with other fish in a reef tank?
Due to its aggressive disposition, the Sargassum Angler should not be kept with peaceful or small fish. It may pose a threat to smaller tank mates.
What is the recommended tank size for a Sargassum Angler?
A minimum tank size of 50 gallons is required to provide adequate space and stability for this species.
How long does it take for a Sargassum Angler to reach maturity?
The Sargassum Angler can grow to 15 inches in length over several years, with growth rates varying based on water conditions and diet.


Theresa Grant –
I’ve kept a Sargassum Angler for over a year now. It’s quite active and definitely aggressive, so I made sure to keep it in a 50-gallon tank with no small fish. It’s a striking addition to the reef setup and stays alert throughout the day. Requires careful planning but works well in a mature system.
Diana Allan –
The fish is bold and interesting to watch. I noticed it occasionally nips at smaller invertebrates, so I’ve added more hiding spots. It’s not for beginners, but once you understand its behavior, it’s a unique piece in the tank.
Adrian Marshall –
After researching thoroughly, I decided to go with this species. It’s visually impressive and active. The tank has been stable, and the fish has grown steadily. I’m glad I took the time to prepare the environment properly.