Description

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:

  • High-quality flakes or pellets

  • Frozen or live foods such as brine shrimp, daphnia, or bloodworms

  • 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:

  • Small rainbowfish species

  • Tetras and danios

  • 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

  • Temperature: 74–82°F (23–28°C)

  • pH: 6.8–7.8

  • Hardness: 5–15 dGH

  • 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.