Rainbowfish
Various Melanotaenia, Pseudomugil species
RainbowfishBeginner
Species Details
Spectacularly coloured, active fish that create stunning displays in groups and are excellent for larger community tanks.
Beginner Care Level
Basic Information
Size7-15 cm (3-6 inches)
TemperamentPeaceful
DietOmnivorous
Lifespan5-8 years
Tank Size151+ litres (40+ gallons)
Water Parameters
Temperature
22-28°C (72-82°F)pH Level
7.0-8.5Hardness
8-25 dGHTank Mate Recommendations
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Rainbowfish
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Quick Facts
Brilliantly coloured, active schooling fish
Males more colourful with higher fins
Need groups of 6+ to show best colours
Very active swimmers needing space
Omnivorous and easy to feed
Peaceful and excellent community fish
Live 5-8 years typically
Prefer slightly alkaline water
Some species from Australia/New Guinea
Beautiful when mature and well-fed
Compatibility Summary
Care Requirements
Tank Size151+ litres (40+ gallons)
Temperature22-28°C (72-82°F)
pH7.0-8.5
Hardness8-25 dGH