Blacksaddle Filefish (Paraluteres prionurus)
Reef compatible, suitable for marine aquariums with a moderate level of care required. This species is semi-aggressive and should be housed in a tank of at least 30 gallons.
Key Details:
- Size: Tiny, 1 inch and below (juveniles)
- Adult Mature Size: Up to 4.5 inches
- Disposition: Semi-aggressive
- Compatibility: Reef-safe
- Difficulty Level: Intermediate
| Parameter | Value |
|---|---|
| Species | Paraluteres prionurus |
| Min. Tank Size | 30 gallons |
| Mature Size | 4.5 inches |
| Compatibility | Reef compatible |
| Difficulty Level | Intermediate |
| Disposition | Semi-aggressive |
FAQ
What is the typical size of the Blacksaddle Filefish when it is young?
The Blacksaddle Filefish grows to 1 inch and below when young, with a mature size of up to 4.5 inches.
Is this fish suitable for a reef tank?
Yes, the Blacksaddle Filefish is reef compatible and can coexist with coral and other reef-safe fish species.
What is the recommended tank size for keeping this fish?
A minimum tank size of 30 gallons is required to provide adequate space and stability for the Blacksaddle Filefish.

Charles Blake –
Added a young Blacksaddle Filefish to my 30-gallon reef tank. It has been active and healthy since arrival. The fish is not overly aggressive and blends well with other reef inhabitants. Good for intermediate keepers looking for a colorful, active species.
Rachel Watson –
The filefish arrived quickly and looks exactly as described. It’s small and active, and has not shown signs of aggression. I’m happy with the size and compatibility in my tank setup.
Grace Robertson –
This tiny filefish has become a highlight in my aquarium. It’s easy to maintain and doesn’t stress other fish. Perfect for a reef tank with moderate care requirements.