There is a 60 acre coal mine/strip pit lake that has a max depth of 72ft that used to be extremely clear with 10ft+ visibility. For the last 3 years there has been between 600-1200lbs of fish food added, per day, for at least 3 months a year by a guy who was allowed to operate a fish farm in floating cages. This year visibility is reduced to <2ft. Question #1, will roughly 81,000lbs+/- of fish food per year for 3 years have an affect on a lake that size with that type of water volume? Assuming it does, how long, if ever, after the fish farming operation is stopped would it take for the nutrient levels to drop off enough to reduce the algae blooms? We're going to have some nutrient tests done in the next week or 2.
Thanks,
Mike
