I doubt you need to do any aerating until the water warms up next Spring, except blowing a hole through any ice (too dirty to allow sunlight through it) that persists for a week.

If one of your diffusers is in shallow(er) water, that would be the place to blow holes through ice cover.

FWIW, I shut down aeration a week or so ago when water temps dropped below 50 degrees (2-3 weeks later than they do in most years).


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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