Have been aerating my pond over the past two years with a 200L/m air pump.

The pond is at most 4m deep at the deepest point with an average of around 2m (6 feet) over most of the bottom.

The aerator is set at around 3m or around 9 feet. My question to you is that an air pump such as this is turning over a lot of water and pretty much stopping a thermocline. However, ive been looking at airblowers which put out around 2000L/m. To increase air going into that column if air/water coming up from the bottom of the pond is it better to put an aerator that is punching out an additional 2000L/m into that column at around 1-1.5m below the surface of the water?

Interesting through?