Pond Boss Forums AERATION Should I aerate? Busted Aerator- Fix now or wait?

Generally, the point of a hole in the ice is to have enough open water (stirred by the aeration) to transfer sufficient oxygen into the pond to keep your fish alive.

gklop, if your ice is as snow covered as mine is, I'd turn the aeration back on once the pump was fixed. If you haven't hurt your fish with the diffuser in deep water during past years, it should be okay now as well.

On a side note, you might not have to run the diffuser 100% of the time to ensure sufficient dissolved oxygen (if that is your main goal for winter aeration), but if it works for you, it works for you.