Generally there will be very little organic muck bacterial decomposition during winter water temperatures at 39F compared to the warm water seasons. Since a higher quality fishery is not a main goal for your pond, a mild winter kill will not be a dramatic event. Going into winter when water temperatures decrease to 50F most ponds naturally circulate top to bottom due to night cooling and increased wind action. At this point in many situations aeration can be turned off unless a specific need is present in the management plan or the goals.
Last edited by Bill Cody; 11/22/16 09:41 AM.