I know mostly what to choose for what, and ID isn't really a problem. I'm looking for information from someone who has used CuSO4 for algae and Chelated Herbicide for weeds at the same time, and how the two react with each other.
Lets say I use 1.5 ppm CuSO4 for algae and 1.75 ppm Chelated herbicide for weeds. Does that combine as 3.25ppm copper or are they distinct as far as their lethality to fish?
