Has anyone tried the Lanthanum based flocculate agents used in swimming pool applications for a pond application. It's used quite a bit to prevent algae blooms in swimming pools by tying up the free phosphate in the water column. It can be purchased in very concentrated containers, and it seems to me would work in a pond application to also prevent algae blooms. It suppose to stay in solution until it ties up with a phosphate molecule and precepitates out.
I have no idea what it would do to the fish or the rest of the aqua culture, but its safe for people in swimming pools.
