Pond Boss Forums MANAGING AN EXISTING POND Corrective stocking I Have a Plan… Almost

Anytime you might think you are pushing the envelope I would feel much more secure with an aeration system. Summer fish kills are typically from O2 crashes in the wee early morning hours right before sunrise. Phytoplankton and plants utilize O2 during the night along with the fish. Phytoplankton and plants win over fish if the O2 gets too low. Running the diffusers at night help minimize the O2 drop. Shallower ponds need more diffusers than deeper ponds, just because the area of influence that each airstation covers is smaller with shallower water.

If it's a shallow pond, less than 7-8 feet deep you are better during the summer running a paddlewheel agitator than a bottom diffusion airstation. During the winter, a single airstation set at 1/3 the total pond depth is enough in ponds under an acre. All you need is a max of 1/10th the surface area ice free.