Karmex is a soil sterilant that a lot of grain elevators around here push as a great pond cleaner. It's really hard to compete with because it is an awesome pesticide. You only have treat once, and it kills almost anything it comes into contact with, plus it lasts for years. As another bonus- its carcinogenic too!
As far as this pond goes, he can't shut off the aerators because of his BOD restrictions... Although if he really put K into it, I may assume the BOD is going to be negligable for a while. Thoughts?
