Threadfin Rainbowfish Iriatherina werneri
Iriatherina werneri
Origin: Australia / New Guinea
Water Parameters
Quick Stats
- Max Size
- 4 cm
- Min Tank
- 40 L
- Lifespan
- 3
- Swimming Level
- middle
- Schooling
- Yes (8–20+)
- Diet
- omnivore
- Temperament
- Very peaceful; vulnerable to fin-nippers.
About
Iriatherina werneri — the threadfin or featherfin rainbowfish — is an exquisite nano species with extraordinarily elongated dorsal, anal, and pelvic fins with thread-like extensions in males. The delicate, almost translucent body with vivid orange and black fin markings is breathtaking in a well-planted aquarium. It requires very gentle flow and gentle tankmates — fin-nipping species will destroy its elaborate finnage. Best in species tanks or with very peaceful nano companions.
Care Guide
pH 6.0–8.0. Very gentle flow. 40+ L planted. Groups of 8+. NO fin-nippers. Feed: micro foods — infusoria, micro pellets, live/frozen artemia nauplii.
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