I am going to do an alum treatment this fall once my bloom settles down, I think it will do a better job of locking up excess phosphorus if the water isn't so green when the alum goes in. In looking at the Fremont lake treatment they waited to do the treatment until October, efficacy was likely better without an active algae bloom going on.
We had strong cold front here this weekend, my water went from green to brown very quick during the day on Saturday and I lost small number of my larger SMB due to a dissolved oxygen sag. This weekends lesson was that I need to run my aeration system 24/7 instead of just at night if my water is that green and the weather forecast warrants a longer run time. Summer cold fronts can be a fish killer. I also learned that SMB are less tolerant of low DO levels than the other fish in my pond and that redear sunfish seem to tolerate low DO levels very very well.
