Parachela siamensis is a small species of freshwater ray-finned fish in the carp and minnow family Cyprinidae.
Patachela siamensis is found in lowland rivers including streams near peat lands. It is found at the surface in large rivers and lakes. During floods it moves into the flooded forest. It can normally be found alongside Parachela oxygastroides and P. williaminae. Used to make prahok in Cambodia.[1]
Patachela siamensis is widely distributed in mainland southeast Asia, from the Mae Klong in Thailand to the lower Mekong basin, in Cambodia (including the Tonle Sap), Laos and Vietnam. It has also been recorded from the Tapi River in southern Thailand.