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In a home setting, these fish need well-oxygenated water with a pH level of 6.8 – 7.2, optimal temperatures varying between 72 and 82 °F (22–28 °C), and plenty of aquatic plants to give them hiding places amid their school. If properly cared for, Rainbowfish can live up to 5 years in captivity. [5]
The rainbow darter (Etheostoma caeruleum) is a small species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is native to North America where it is found in small, fast-moving streams and small to medium-sized rivers.
Otherwise known as one of the best beginner community fish species, these tropical creatures are available in various colors and can be kept in a freshwater tank as small as 10 gallons.
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".
The threadfin rainbowfish or featherfin rainbowfish (Iriatherina werneri) is a rainbowfish, the only species in the genus Iriatherina.It is characterized by long beautiful fins, and is among the most attractive of the rainbowfishes.
The rainbow trout (Oncorhynchus mykiss) is a species of trout native to cold-water tributaries of the Pacific Ocean in North America and Asia. The steelhead (sometimes called steelhead trout) is an anadromous (sea-run) form of the coastal rainbow trout (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually returns to freshwater to spawn after living two to three years ...
The male is considered to have more of a vivid, rainbow color than the females do. This species typically has a blue back with pale, yellow fins. [4] The diet of this species is unknown, but it is assumed that they feed on small insects and vegetation such as algae. [5] [6]
Melanotaenia splendida splendida, also known as the eastern rainbowfish, is a subspecies of fish in the family Melanotaeniidae endemic to Australia. [1]The Eastern rainbowfish is widespread on the mainland, and is found in river systems east of the Great Dividing Range of Queensland, Australia, from the Boyne River south of Gladstone to Cape York Peninsula.