The granular form also works great. It has the advantage of reaching the stuff on the bottom before it spreads its ugly form on the surface

Meadow.......thanks, but I can't complain about the liquid. The pond looks better than it has in months. Right now I'm debating about throwing in a few grass carp, which everyone in my part of the country swear by. I really don't like throwing in chemicals and would rather have a natural balance. So, I guess the experimentation will go on.

Regards