This is just a post reporting results I had from tips in another thread. I
made it a new thread to highlight it. Take no credit other than my success
story, the concept was posted by others.

I've been fighting string Algae for three years. Barely straw works early
in the year but fails when the trees leaf out and there is too little
sunlight (UV) to make peroxide from straw decay products.

This was a particular problem in my planted stream. harvesting the string
algae would rip up delicate plants such as 4 leaf clover. I have a
waterfall, three stream regions, each with a 10" or mini water fall to
accommodate grading.

I bought Wallmart's "Special Kitty" unscented kitty liter - ingredients
are "ground clay". 25# cost $2.

Added about 2 tablespoons to the top pool that feeds the waterfall. 24
hours later, virtually all the string algae on the falls and smothering my
4 leaf clover in the topmost stream segment was gone! The string algae in
the 2nd stream segment was reduced significantly, but the algae in the
third segment and pond entrance seemed untouched.

2nd day I added 2 table spoons (guess) more, half at in the upper pool,
half at outlet from the second stream segment to the third segment.

3 day - stream almost completely cleared! In the third stream segment I
still had s good clump that was protected by parrots feather. Also had a
good blanked of algae at in the pond near the stream entrance.

I added about 1 tablespoon sprinkled over each remaining area.

4th day - only some very sickly string/blanket algae to be found anyplace!

Thanks for the tips folks!!!

gerry

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Personal home page - http://gogood.com

gerry misspelled in my email address to confuse robots