Also this from John Richardson:

Cecil: I have proposed it for Indiana lakes many times but have never tried it, I rely on Nate Long at Aquatic Control for application rates. He will want to know total volume of pond, buffering capacity, pH etc. please contact him. Aquatic Control- Seymour, IN (800) 753-5253

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.