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''Oreichthys cosuatis'' is a small (~3.2"/8 cm TL) cyprinid fish found in India and Bangladesh.〔Talwar, P.K. & Jhingran, A.G. (1991): Inland fishes of India and adjacent countries. vol 1. A.A. Balkema, Rotterdam. 541 p.〕 It is also reported from Thailand 〔U.S. National Museum Bulletin 188: The Freshwater Fishes of Thailand, or Siam by Hugh M. Smith 1945〕 and Myanmar. They are strictly freshwater, and are found in ditches, ponds, streams and canals.〔Rahman, A.K.A. (1989): Freshwater fishes of Bangladesh. ''Zoological Society of Bangladesh. Department of Zoology, University of Dhaka. 364 p.''〕 In an aquarium, they are generally peaceful, and tend not to bother other fishes, even those much smaller than they are although they are susceptible to be bullied by larger more boisterous fish. They prefer cooler water (76 °F/24.4 °C at most, although higher temps are tolerated in the short term providing oxygen levels do not drop).Gentle water flow is preferred and be sure to use a soft substrate as this fish has sensitive bristles which is uses whilst foraging. ''Oreichthys cosuatis'' is found in the Ganges and Brahmaputra river systems in India, Bangladesh and Nepal. This fish favours slow flowing areas of rivers with dense vegetation and clear water. This fish reaches around 40mm with the male growing slightly larger than the females,slightly more colourful and they have an extended dorsal fin ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Oreichthys cosuatis」の詳細全文を読む スポンサード リンク
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