Melanotaeniidaefreshwater fishbeginner

Eastern Rainbowfish

Melanotaenia splendida

Also known as: Eastern Rainbowfish, Splendid Rainbowfish

Origin: Australia (eastern Queensland)

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Water Parameters

Temperature2228 °C
15 °C35 °C
pH6.58
49
GH (Hardness)515 °dGH
0 °dGH30 °dGH
KH (Alkalinity)28 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
10 cm
Min Tank
120 L
Lifespan
5-8
Swimming Level
middle
Schooling
Yes (6–12+)
Diet
omnivore
Temperament
active, peaceful schooling fish

About

Melanotaenia splendida is the most widely distributed rainbowfish in Australia, found across eastern Queensland and into New Guinea. Multiple subspecies exist, each with distinct regional colouration. Males develop a deep, arched body profile and brilliant scale iridescence with age. A robust, easy-care species ideal for rainbowfish beginners.

Care Guide

Water: 22–28°C, pH 6.5–8.0, soft to moderately hard. Tank: 120 L+, open swimming space with planted margins. Feeding: Omnivore; flakes, pellets, and frozen/live foods readily accepted. Behaviour: Active, peaceful, lively schooling fish; males display continuously. Compatibility: Excellent community fish; compatible with a wide range of similarly sized species.

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