School of fish in the stream diagonally arranged while feeding together and then they all got frightens going to the right, Poropuntius sp

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