Dusky Squirrelfish (Neoniphon vexillarium)
The Dusky Squirrelfish is a striking nocturnal species that adds bold color and intriguing behavior to larger saltwater aquariums. Its body is a deep reddish-orange with a silvery underside, accented by dark fins and large, reflective eyes that give it a distinctive “watchful” look, perfect for adding contrast to reef tanks or fish-only setups.
Native to Caribbean and western Atlantic reefs, Dusky Squirrelfish are typically found hiding in crevices or under ledges during the day, emerging at night to feed. In the aquarium, they thrive in tanks with plenty of rockwork, caves, and shaded areas to retreat into, making them excellent additions for aquarists who enjoy observing natural nocturnal behaviors. While generally peaceful with other mid-sized fish, they require a well-structured environment to feel secure.
| Specifications |
|---|
| Scientific Name: Neoniphon vexillarium |
| Size: Up to 6 inches |
| Water Temperature: 75–82°F |
| Water pH: 8.1–8.4 |
| Compatibility: Peaceful with larger, non-aggressive fish |
| Light Cycle: Prefers dimmer conditions; active at night |
FAQ
What is the typical behavior of the Dusky Squirrelfish in an aquarium?
The Dusky Squirrelfish is primarily nocturnal and spends the day hidden in crevices or under rocks. It becomes active at night to feed and displays a watchful demeanor due to its large reflective eyes.
What kind of tank setup is best for this fish?
A well-structured tank with plenty of rockwork, caves, and shaded areas is ideal. These provide hiding spots during the day and support its natural behavior of retreating into shelter.
Is the Dusky Squirrelfish compatible with other fish?
It is generally peaceful with other mid-sized, non-aggressive fish. Avoid housing with very small or aggressive species that may stress it.
Sean Clark –
The Dusky Squirrelfish is a fascinating addition to my reef tank. It’s active at night and always seems to be watching the surroundings. I love how its bright red-orange body contrasts with the silvery underbelly. The tank has plenty of rockwork, and it’s happy hiding during the day. Very easy to care for once the setup is complete.
Warren Berry –
I was drawn to this fish for its unique appearance. It’s not very active during the day, which is normal, but at night it becomes quite lively. I’ve noticed it exploring the crevices and feeding on small crustaceans. It’s a great visual focal point in a larger tank.
Jonathan Wright –
After adding the Dusky Squirrelfish to my 120-gallon tank, I’ve seen a noticeable increase in nighttime activity. The fish is calm during the day and seems to enjoy the shaded areas. Its reflective eyes are striking and add a lot of character to the tank.