Suck from the shallow water and spray as much as possible up in the air to get as much of the water as possible in contact with the air. Pushing the exit water as far away as possible from the intake is a good thing.

The cloudy ice is what bit your pond in the butt. 2" white ice, 2" snow is all that's needed to stop sunlight from getting to the phytoplankton and plants to allow them to make O2, so they consume O2 along with the fish. I've seen winterkill happen in as little as 2 weeks.

The more area of the water that is exposed to the air the better. Do another O2 test tomorrow to see how much it's changed. Ideally for winter aeration you want about 10% of the surface of the pond to be ice free.

If you can leave the pump running all night long that will help.


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