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Rainbow fish in aquarium. Rainbowfish usually do best with tropical community fish, such as tetras, guppies, and other rainbowfish. However, two males may sometimes fight at breeding season if there are not enough females. Rainbowfish usually eat floating flakes in captivity, because in the wild they will often eat insects floating on the surface.
It is known under a number of common names including diamond rainbowfish, [3] neon rainbowfish, Praecox rainbowfish, dwarf neon rainbowfish, peacock rainbowfish, and Teczanka neonowa. [4] It is endemic to the Mamberamo River basin in West Papua in Indonesia [ 2 ] and common in the aquarium trade.
A Boesemani rainbowfish in an aquarium. M. boesemani is also available in the aquarium hobby, where it is prized for its excellent colours and peaceful demeanor. The colour pattern is completely different from most other forms of rainbowfish, as it has a half orange-red rear and a bluish-grey or purple front which in some specimens is almost defined perfectly.
Melanotaenia praecox (M. C. W. Weber & de Beaufort, 1922) (Neon rainbowfish) Melanotaenia pygmaea G. R. Allen , 1978 (Pygmy rainbowfish) Melanotaenia rubripinnis G. R. Allen & Renyaan , 1998 (Red-finned rainbowfish)
Melanotaenia maccullochi, the dwarf rainbowfish or McCulloch's rainbowfish, is a species of rainbow fish in the family Melanotaeniidae. [ 1 ] [ 2 ] It was described by James Douglas Ogilby in 1915 when he received two samples from Mr. A. Anderson and the fish was named after the ichthyologist Allan Riverstone McCulloch .
Breeding takes place year round and the male and female fish form pairs in which the females releases the eggs and the male fertilises them. 60-70 eggs are laid at each spawning and the golden coloured, round eggs attach to submerged vegetation with an adhesive filament.
Ornate rainbowfish inhabit freshwater creeks, streams, ponds and dune lakes in the coastal dune habitat locally known as wallum.Their typical habitat is sandy coastal areas where they are found in sluggish, acid waters stained with tannins from vegetation falling into the water where there is woody debris in the water, grassy banks, and thick submerged and emergent vegetation. [4]
Female red rainbowfish. The males are bright red and with age grow a high back. The females are olive brown in colour. Their colours change depending on their mood, but subordinate males do not display bright colours. They grow up to 15 cm (5.9 in) in size, but typically attain a smaller size of around 12 cm (4.7 in). [3] [4]