Featherfin Pearlfish (Simpsonichthys constanciae)
The Featherfin Pearlfish is a small, elegant marine fish native to the western Pacific Ocean. It is known for its distinctive feather-like fin and silvery body with a subtle pearlescent sheen. This species typically inhabits shallow coral reefs and rocky areas, where it feeds on small invertebrates and detritus.
Key Features
- Scientific Name: Simpsonichthys constanciae
- Size: Up to 6 cm (2.4 inches)
- Color: Silvery with pale blue to silver iridescence
- Fin Structure: Long, feathery dorsal and caudal fins
- Habitat: Shallow coral reefs, rocky substrates
Specifications
| Feature | Detail |
|---|---|
| Species | Simpsonichthys constanciae |
| Size | Up to 6 cm |
| Color | Silvery with pearlescent sheen |
| Fin Type | Featherfin dorsal and caudal |
| Habitat | Shallow coral reefs and rocky areas |
FAQ
What is the typical lifespan of a Featherfin Pearlfish in captivity?
Please contact customer service
Is the Featherfin Pearlfish suitable for a home aquarium?
Yes, it is well-suited for a saltwater aquarium with stable water conditions and a reef-friendly environment.
What kind of diet does the Featherfin Pearlfish require?
It primarily feeds on small crustaceans, mollusks, and organic detritus. A varied diet of live or frozen foods is recommended.

Lillian Russell –
The Featherfin Pearlfish arrived healthy and active. It quickly adapted to the tank and adds a beautiful visual element with its flowing fins. Easy to maintain with proper water parameters.
Dominic Knox –
Great addition to a reef tank. The fish is peaceful and doesn’t compete with other species. Only needs occasional feeding with small crustaceans.
Phil Hamilton –
The color and movement are stunning. It’s a unique species that stands out in a mixed reef setup. Water quality must be stable, but otherwise very easy to care for.