Threadfin Rainbowfish
Iriatherina werneri
Difficulty (1-5): 4/5
Description
Delicate rainbowfish with extravagant trailing fin filaments. Too slow-feeding and too small for anything but a calm tank.
Water test requirements
- pH: 6 – 8
- Temperature: 24 – 29 °C
- General Hardness (GH): 5 – 20 °dGH
- Carbonate Hardness (KH): 3 – 18 °dKH
- Nitrate (NO3): ≤ 25 mg/L