Ok, I have a acre or so pond and I have surface algae I need to get rid of. I am located in central NC. the weather for the last month was two weeks of 95-98 degrees. 2 weeks of 85 or so and now creeping into the 90's again. 1/2 inch of rain last month or so. Pond level is down 5 inches. No water has been pumped out of the pond. No chemicals applied to pond or surrounding areas. I have about 1/2 coverage of a thick algae. It makes the fishing tough and I would like to reduce it. I am aware that I cannot kill too much of it or during this hot period the decompositon will deplete the oxygen and kill my fish, but I need to get this in check. any suggestions?