Others would be better to give advice on controlling it. I have used Cutrine and dye to help control FA, but neither of those address the main problem which is excess nutrients.
In fact, I did not have problems with the bluegreen algae till I started controlling the FA. Which makes a very good point. If you kill off one thing, something else in nature is going to find a way to utilize those nutrients. Hopefully something not worse than whatever was that was killed off.
I believe the more a person manages a pond to fit his wants, the more critical management becomes to prevent unwanted side effects from the management.
Job security for a pondmeister I guess!
