Thanks everyone. I guess I will try the flouridone route, i'll have to price it out.. those list prices seem quite expensive!

I will certainly keep everyone updated. The duck is a long story, basically was out with shotgun one morning several years ago during the last weekend of duck season and shot it.. then realized I didn't have my dog with me. What ensues next is a coin flip between me and a buddy of who is going to swim in the 35 degree water filled with watermeal. If you really want to see the result, search youtube for "duck hunting without a dog". (Warning, there's some minor bad language as one would expect when swimming in really cold water.)

Anyhow....

The only thing I am still a little confused is how to apply. Considering the watermeal is at it's lowest right now (almost non existent) should I wait till it starts to come back and hit it topically or just go ahead and disperse it across the entire pond (which is only 1/2 acre or so anyhow)?