my concern is that if it is vibrating algae cells to death, what would it do to fish and other plants?
Bill, does it work much at all on a 1/2 acre pond? It sounds too simple (as you said, algae is not all the same). It says that you have to put it closer to affect the chara.
Anyway, my rake is lots cheaper than the $3500.00 price tag.
B
