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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.
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.
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.
Australian rainbowfish are popular aquarium fish along with Pseudomugil blue-eyes, which are another small, colourful fish found in a similar range and habitats. In the wild, some rainbowfish populations have been severely affected by the aggressive introduced eastern mosquitofish ( Gambusia holbrooki ), tilapia cichlids, and pollution.
Melanotaenia duboulayi, the crimson-spotted rainbowfish, less commonly known as the Duboulay's rainbowfish, [2] is a species of freshwater fish endemic to coastal eastern Australia, although M. duboulayi has also been kept as an aquarium fish since the early 20th century, and is the original "Australian rainbowfish".
Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks. [58] can live in full sea water [59] 66 °F - 84 °F (19 °C - 29 °C)
A female individual. The species is a large and muscular rainbowfish, generally attaining a length 15 cm (5.9 in). Individuals are a dark lavender colour at the basic level with a rosy chest. [2] Males have deeper bodies than the females, and have extended fins, as well as the back half of their bodies being coated in a reflective golden-orange.
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]