Hello Shan sounds like you have a mess that I can help you with I deal with this kind of stuff all the time the thing that I would do is very simple and very effective with no adverse conditions to fish.The plan that works the best for me is a two stage treatment 1 apply 3pounds per acre ft of revive this will bring down your nutrient level to a proper level if you have a way to raise your o2 levels that will help keep your fish healthy so you can hit your bloom with your cooper.If you have time you can wait to treat with the cooper and let the revive do the job it will take about two weeks for you can see the algae start to weaken and then you hit it with a light dose of copper it should take care of the problem so you don't loose your fish and don't spend the rest of the season to get it in control hope this works for you let me know. this works in In. don't know about there.Good luck Shan DOC

Doc