Pond Boss Forums GENERAL QUESTIONS Muddy water Floating clumps of suspended clay

Looks like your photos were addresses by Ewest and Esshup. My opinion, too, is that it's just filamentous algae (FA). You have excess nutrients and this crap is a typical byproduct. Figure out your source of the nutrients and you can work on minimizing them. In the meantime, if you don't mind the chemical approach, try some Cutrine Plus, a copper based product. Wiped out all of my FA after a few treatments this summer.