Pond Boss Forums AERATION Systems questions Winter aeration?

Running the bottom aerator just one to a few hours per day and then normal run time hours per day when water gets to 65F at Spring start up will not hurt anything and it will save a little electricity. Other than that, a slow start up in early Spring is rarely beneficial when surface water temps are less than 56F.

It has never been proven to me that aeration will "knock down nitrogen & phosphate (N&P) concentrations. Aeration to reduce algae is rarely a significant reduction in the long term. Existing algae may decrease with start up aeration, but other algae species will eventually colonize or "like it" in the new water conditions. A lot of algae does not "like" moving water, but there are algae that grow in trout streams (moving water). Although the other algae may not be as abundant. Abundance is dependent on nutrient (N&P) concentrations.