Ok I may have done it all wrong, I used copper sulfate for fa control and now I have 3 giant Ccs not looking so hot. My pond is .75 acres with a average depth of about four feet. I have sprayed liquid cs in small doses in the past, a gal at a time for surface fa and had no probs. his time I decided to he crystals and disputse them around the edges for the fa growi g subsurface. I broadcasted 15 lbs of crystals on Saturday afternoon. For the last 2 days I see 3 8-10 lb Ccs swimming close to the top and acting lethargic. I also found four dead mud cats that I didn't know we're In there. I have 200 small Ccs I just put in there a couple weeks ago and no sign of them, just these three big ones. Do they stand a chance, will they pull thru. How long will the cs stay in the water, I'm full of questions. Any input would be appreciated. What does the cs do to cats? Thanks in advance