Pond Boss Forums AERATION Should I aerate? Mini-pond winter aeration question

When your fall-winter air temps are below 55F & decreasing and water temps are on a decreasing trend the pond will daily mix top to bottom naturally due to wind action and nightly convection currents. In spring the opposite is true. Increasing air and water temps (60-70F+) tend to promote the development of the top warm water layer. Then mechanical mixing is important if one wants to avoid thermal stratification.