Melanotaenia Fluviatilis
The Australian rainbowfish (Melanotaenia fluviatilis), known less commonly as the Murray river rainbowfish or the Crimson-spotted rainbowfish, is a species of freshwater rainbowfish endemic to Australia. They are very colourful, hence their name; males of this species are more colourful than females. Australian rainbowfish are schooling fish and will congregate near logs or riverbanks.Australian rainbowfish are freshwater fish native to Australia, occurring in New South Wales and Queensland, especially in the Murray-Darling basin.They inhabit rivers, drains, creeks, ponds and reservoirs, and occasionally stagnant water.Australian rainbowfish inhabit temperature ranges between 22 and 25 °C (72 and 77 °F).As their range is the southernmost of all rainbowfishes, Australian rainbowfish are the only species adapted to low winter temperatures of 10 to 15 °C (50 to 59 °F).
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