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Turquoise Rainbowfish
Melanotaenia lacustris
Family: Melanotaeniidae
📍 Lake Sentani, West Papua
The turquoise rainbowfish has an intense blue-green iridescence across its body that intensifies at peak colour. It is a larger, robust rainbowfish that does best in spacious tanks with good filtration. Males colour up brilliantly in well-maintained setups.
Keeping this species
- diet
- Omnivore – flake, pellets, brine shrimp, daphnia, spirulina
- lifespan
- 5–8 years
- max size
- 12 cm (4.7 in)
- tank size
- 40 gallons minimum
- school size
- 6+
- temperament
- Peaceful, active
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Tips from the community 💡
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Water it likes
- ph
- 7.0–8.0
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 10–20 dGH
- temperature
- 72–79°F (22–26°C)
Natural Habitat Temperature
75°F — 79°F seasonal range · (Jan low, Mar high)