Pond Boss Forums GENERAL QUESTIONS Muddy water Very green water little visibility

Most algae control produycts are aimed at filamentous algae, not plantonic algae. Someone may know what the effectivity on phytoplankton would be.

Is the appearance of the bloom objectionable or are you worried about a possible fish kill from an algae crash? A nice (by many of our ways of thinking) bloom like that should promote a high density of biomass in the pond that could be turned into some interesting fish if managed properly, but if the appearance is more important you may want to consider using Aquashade or one of the other pond dyes to block most of the sunlight entering the water, thereby reducing plant growth (in this case the phytoplankton) - IF you would prefer a blue (IIRC black is also an option) pond to a green one.