Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Pros and Cons of Pond Dye

I've been trying to find an old thread(s) that discusses the pros and cons of pond dye without success. I did find one thread titled "Pros and cons of blue pond dye" but it never really addressed the question. Does anybody know of a link(s) that will help me get a better understanding of potential pond dye impacts (good and bad) on the pond ecosystem?