Spiny Finned Basslet
The Spiny Finned Basslet (Belonepterygion fasciolatum) is a small, visually appealing marine fish native to the Indo-Pacific region. It grows to a maximum size of approximately 2.4in and is known for its peaceful nature, making it a suitable choice for community aquariums. This species thrives in an environment with plenty of live rock for hiding and grazing. It’s an omnivore that readily accepts a varied diet of high-quality frozen or live foods, including small crustaceans, worms, and plankton. The Spiny Finned Basslet is a shy fish, often hiding in rocks or crevices, and is best kept in schools of at least six individuals.
Specifications
| Feature | Detail |
|---|---|
| Scientific Name | Belonepterygion fasciolatum |
| Maximum Size | 2.4 inches |
| Temperament | Peaceful |
| Diet | Omnivore (accepts frozen, live foods) |
| Group Size | At least six individuals |
| Habitat | Indo-Pacific region, requires live rock |
FAQ
What is the ideal group size for Spiny Finned Basslets?
The Spiny Finned Basslet is best kept in schools of at least six individuals to promote natural behavior and reduce stress.
What type of diet does this fish prefer?
It is an omnivore and readily accepts a varied diet of high-quality frozen or live foods such as small crustaceans, worms, and plankton.
Is the Spiny Finned Basslet suitable for beginner aquariums?
Yes, due to its peaceful nature and adaptability to community tanks, it is a good choice for beginner marine aquarium enthusiasts.

Piers Robertson –
Added six Spiny Finned Basslets to my 30-gallon marine tank. They’ve been active and calm since arrival. The fish hide in the live rock well and eat the frozen brine shrimp regularly. The tank looks more vibrant now with their colorful fins.
Elizabeth Avery –
I was worried about shy fish in a busy tank, but they’ve adapted well. They stay in the crevices during the day and come out at night. Feeding them small live foods works perfectly.
Jessica Oliver –
The fish arrived healthy and are now part of my reef setup. I’ve noticed they’re not aggressive and don’t bother other species. Great for a peaceful community tank.