Only part of the story was printed as what was in the Tribune. They have used copper sulfate in past years with no harm to the fish. No one can figure out why it did this year. There is another compound that can be used and end up in eliminating the algae that will not effect the fish that I am quite sure they will use in the future. Too bad it happened and small towns do not have the expert staff that larger metro cities can afford. Copper sulfate really should not be put in drinking water, I sometimes use it but not on vegetables.