Product: Water Treatments - Pond Clarifiers
These are often called flocculants. And a lot of times, let’s say, you got that green water and it is just that everything is kind of murky and you’ve got a good filtration system, but the stuff is so small it is just going right through your filter and it is not getting caught.
Now, that is where the pond clarifiers work great. They tend to clump all of that algae together in the clumps that are large enough to be taken out by your filtration.