I have a spring fed pond that is approximately 120,000 gallons and is
stocked with trout. The water is very green with lots of algae plants
on the bottom. I did use aquazyme and it did nothing to help. After
reading many of the posts here I'm still not sure where to start. I
have been told that potassium permanganate will solve this problem.
Also that bentonite clay might help. I've also read some posts that
talk of good algae? Can anyone help me?

Pete
Macungie, PA