1 acre pond in NE Tx, 2 bottom air diffusers installed this Spring. I have a lot of filamentous algae. The water has already cooled off substantially (we had freezing temps a few days ago). I understand this is a vulnerable time for turnover as surface temps fall and algae dies. When and how long and when should I be running my aerators now and during the winter? I've been running 24/7 for the past month after spraying algaecide.