Aru Rainbow Fish (Melanotaenia picta)
Overview
The Aru Rainbow Fish is a small, colorful freshwater species prized for its iridescent scales and lively swimming behavior. With striking red and blue highlights, it is a beautiful addition to community aquariums, especially in schools where their colors and activity are most pronounced.
Origin
Native to the Aru Islands, Indonesia, inhabiting clear, slow-flowing streams and freshwater lakes with abundant vegetation.
Feeding
Omnivorous. Thrives on a varied diet including:
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High-quality flakes or pellets
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Frozen or live foods such as brine shrimp, daphnia, or bloodworms
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Occasional vegetable matter to enhance color
Tank Mates
Peaceful and schooling. Best kept in groups of 6 or more with other similarly sized, non-aggressive fish such as:
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Small rainbowfish species
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Tetras and danios
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Corydoras and other bottom dwellers
Avoid: Fin-nipping or overly aggressive species.
Aggression
Low. Males may display briefly during breeding but otherwise peaceful.
Experience Level
Beginner to intermediate. Hardy and adaptable, making it suitable for most well-maintained community freshwater tanks.
Water Parameters
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Temperature: 74–82°F (23–28°C)
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pH: 6.8–7.8
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Hardness: 5–15 dGH
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Notes: Provide open swimming areas with planted hiding spots; regular water changes support optimal coloration and health.
The Aru Rainbow Fish (Melanotaenia picta) is a vibrant, peaceful, and active schooling species, perfect for aquarists seeking a dynamic and colorful centerpiece for tropical freshwater aquariums.