Originally Posted By: ewest
Can you post a better pic ? Looks like FA. Lots on here about FA. If a very limited area then rake it out. You can also treat a small limited area with hydrated lime which will kill most stuff in that area.


X2 I am a huge fan of hand treating wind blow alga piles in our pond.

Not only will the PH burn the alga but the lime nutrients will tie up free soluble nitrates, and phosphates into calcium nitrate and calcium phosphate. These bonds are difficult to break and will stay tied up until plant roots want to feed of it.

Cheers Don

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7/8th of an acre, Perch only pond, Ontario, Canada.