Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants My First Bloom?

In our region our ponds will mix naturally this time of year, usually in October. The official term is monomictic. Surface temps cool and mix within the water column. This often causes a plankton bloom due to mixing of nutrients, primarily phosphorous, that's been tied up in the pond bottom. In nutrient rich ponds this can cause filamentous algae blooms as well, but yours is a good ol' phytoplankton bloom.