Iriatherina werneri Rainbow Fish – Threadfin Rainbowfish is one of the most elegant and unique nano-community fish available to aquarium enthusiasts. Its slender body displays attractive silver, golden and subtle iridescent tones, while the males develop spectacular elongated dorsal, anal and pelvic fins that give them a distinctive thread-like appearance.

Threadfin Rainbowfish are peaceful, active and best kept in groups. They look especially impressive in a planted aquarium with open swimming areas, gentle water movement and subdued lighting. Their calm nature makes them suitable for peaceful community tanks with other similarly sized, non-aggressive fish.

For the best appearance and natural behavior, keep 6 or more fish together, with a slightly higher number of females than males where possible. Feed them a varied diet consisting of quality micro-pellets, crushed flakes and appropriately sized live or frozen foods such as baby brine shrimp and daphnia.

Scientific Name: Iriatherina werneri
Common Name: Threadfin Rainbowfish / Featherfin Rainbowfish
Family: Melanotaeniidae
Temperament: Peaceful
Recommended Group: 6+ fish
Suitable Aquarium: Planted and community aquariums
Diet: Omnivorous