What is the lowest water temperature freshwater prawns can tolerate?
Prawns survival in ponds is dependant on how rapidly the temperature changes. The lowest temperature prawns can tolerate and survive is approximately 57F (14C) if the temperature is lowered very slowly over a period of several days, but only 60F (15C) if the temperature change occurs during approximately one day. Therefore, you must remember that smaller ponds will exhibit a more rapid change in temperature than large ponds. Growth of prawns becomes slow at water temperatures below 68F.