My pond has been fertile from day 1 plus I've been feeding for 6 years and the past couple have been pretty dry and there hasn't been enough rain to flush excess nutrient out. My pond is 2.5' low right now so those nutrients are concentrated. Visability two weeks ago was around 8" where in the past it was 16" to 20" due to suspended clay and plankton. How much harm can I do by adding 60lbs of alum per acre foot followed by 40% hydrated lime?



"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge." Stephen W. Hawking