What I am saying is your temperature-oxygen problem for trout will not occur until the surface water gets to 75-76F. Bottom aeration at these surface temps may or may not help keep trout alive. It depends. You do have spring water inflow, which in itself may naturally provide enough temperature and DO refuge for the trout depending on surface water temperatures of Jun-Jul-Aug. Your other major factor for trout survial is the amount of biochemical oxygen demand of the pond ecosystem which is determined by the eutrophic nature or status of the pond. A third factor is water clarity which determines how deep DO is produced in the water column.

Last edited by Bill Cody; 05/25/12 10:35 AM.

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