Rainbowfish

• The rainbowfish are a family (Melanotaeniidae) of little, beautiful, freshwater angle found in northern and eastern Australia, New Guinea, islands in Cenderawasih Bay, and the Raja Ampat Islands in Indonesia. 
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• The biggest rainbowfish family, Melanotaenia, gets from the antiquated Greek melano (dark) and taenia (joined). 
• Deciphered, it signifies "dark grouped", and is a reference to the regularly striking parallel dark groups that keep running along the assortments of those in the Melanotaenia variety.