The only time I would consider aerating just a potion of a pond would be for surface aeration like a fountain can supply. I'm not expert, but I would be concerned about moving dead water up from the bottom and lessening the quality of the upper column, especially in that area. This concept of surface aeration is not really what you are after since it may not get good DO down to your muck on the bottom that is growing algae.
I'm not convinvce that aeration is a cure for algae anyway, but more of a tool to help control it. Water depth, water clarity, and bottom muck nutrient levels are the main contributors to FA.
Last edited by Quarter Acre; 04/14/20 01:00 PM. Reason: typos
