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Threadfin Rainbowfish
Iriatherina werneri
Family: Melanotaeniidae
The threadfin rainbowfish is a delicate, striking fish with males displaying long, flowing finnage tipped in vivid colour. It is a micro-predator that requires calm water and very small live or frozen foods. Best kept in species tanks or with the smallest, gentlest tankmates.
Keeping this species
- diet
- Micro-predator – baby brine shrimp, micro worms, daphnia nauplii
- lifespan
- 3–5 years
- max size
- 4 cm (1.6 in)
- tank size
- 10 gallons minimum
- school size
- 8+
- temperament
- Peaceful but very delicate – avoid fin-nippers
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Water it likes
- ph
- 6.5–7.5
- ammonia
- 0 ppm
- nitrate
- <15 ppm
- hardness
- 5–12 dGH
- temperature
- 75–82°F (24–28°C)