Note the important temperature related information from the above study are these notes:
C. Cole (1951) reported that bacterial fin rot and fungus attacked redear sunfish almost continuously in aquaria once temperatures fall below 58F(14.4°C). Below 44F(6.6°C), redear were inactive and did not feed. It is assumed that redear growth ceases when temperatures fall below 50F(10°C), as is true for bluegills (Anderson 1958). A lower lethal temperature of 43.7F(6.5°C) was determined in reservoirs by Leidy and Jenkins (1977). Redear sunfish are susceptible to rapid temperature changes (Swingle 1949; Rounsefell and Everhart 1953).
