Changing places as they make a formation in diagonal then a dried leaf floated from the right to the left, Fish in the Stream, Poropuntius sp

freshwater fish neolissochilus soroides soro brook carp fish neolissochilus hendersoni cypriniformes sand cyprinidae actinopterygii freshwater hill streams streams fisheries scales river wildlife mammals poropuntius aquatic stream water fins habitat natural world wildlife sanctuary animals body of water tengas flowing jungle stream rapids cambodia acantopsis choirorhynchos laos vietnam natural habitat nature malaysia huai kha kaeng poropuntius normani mountains thailand edible waterfalls jungle current school rainforest tropical