Hello everyone. Worried that I am going to have a fish kill. I have a 1.5 acre pond that is approximately 5' deep located in south Louisiana. Before I added agricultural lime to the pond the water alkalinity was 20 ppm and a 6.5 ph. I added approximately 3 tons of lime to 2/3 of the pond. This was done a month ago. The water clarity started to change from very clear to green. Over the last several weeks the green color in the water intensified. Today I noticed a blue green algae against the down wind bank. Where the algae is piled up it is almost white in color. I have not added any fertilizer. There is a lot of flow through the pond when it rains. Last significant rain was a week ago (approx .5"). Over the last couple of years the pond has been very clear, which lead to a lot of weed issues. I wonder if increasing the alkalinity allowed the water to absorb nutrients that were locked up due to low alkalinity. what can be done to correct my situation?
