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The red-tailed silverside, or zona (Bedotia geayi) is a species of Madagascar rainbowfish endemic to the Mananjary River drainage in Madagascar. It is threatened by habitat loss and introduced species. [1] It has often been confused with the related B. madagascariensis, which is common in the aquarium trade.
Rheocles is a genus of Madagascar rainbowfish. Rheocles has a restricted distribution, being found only in certain forested freshwater habitats in the central and eastern highlands of Madagascar including the Nosivolo River. [1] The genus appears to feed almost exclusively on allochthonous material, primarily insects falling onto the water ...
A 2004 study supported three major, more or less geographically distinct, clades of Bedotia, one comprising species with distributions ranging from mid- to southeastern Madagascar (B. madagascariensis, B. geayi, and B. tricolor, plus four undescribed species), another including species restricted to eastern drainages north of the Masoala ...
The entire family of Bedotiidae is endemic to Madagascar. [1] Bedotiins occur exclusively in freshwater environments and are distributed in small to medium-sized forested rivers and streams, occasionally in swamps and marshes, spanning nearly the entire eastern slope of Madagascar (R. derhami is recorded from a westward draining Sofia River basin in the northeast of the island).
Rainbowfish usually eat floating flakes in captivity, because in the wild they will often eat insects floating on the surface. 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 ...
Australian rainbowfish are usually less than 12 cm (4.7 in) in length, with some species measuring less than 6 cm (2.4 in), while one species, Melanotaenia vanheurni, reaches lengths of up to 20 cm (7.9 in). They live in a wide range of freshwater habitats, including rivers, lakes, and swamps.
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Rheocles sikorae is a species of rainbowfish in the subfamily Bedotiinae, the Madagascar rainbowfishes. It is endemic to Madagascar where found in tropical rivers and streams. [ 1 ] [ 2 ] It can reach the maximum recorded length of 11.5 cm (4.5 in).