Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Plankton bloom

I am getting some green pea soup in my pond. Not thick but there is enough to prevent me from seeing very deep into the pond. The thing that is frustrating is that I just applied cutrine at .6 gallons per acre ft well diluted and distributed 7 days ago. How could this reappear so soon? We did recieve a heavy rainfall since the treatment but It came back so soon. I know the rain brought in some nutrient but shouldn't the plankton be dead? Should I treat it again or will the plankton die off by itself? Thanks

I don't undrestand why you would want to kill your plankton bloom unless you think you may have a DO {lack of oxygen} problem . It is the base of the food chain. ewest

There is no way to know if your plankton bloom will diminish or intensify over time. Having some green water is very good, but having a very dense plankton bloom can be potentially risky. Treatment with copper will kill phytoplankton, which dies and decays, releasing nutrients that can be used by plankton in the following days. The best way to deal with dense phytoplankton is to deal with the conditions for dense plankton growth. Try a microbial water clarifier to manage nutrient concentration, along with a dye like aquashade to limit sunlight penetration. Stop the copper application. This should improve your situation, but will take time. Learn to like the green water, but you want more than 12" visibility.