Quote:
The best thing to do for winter aeration is to set or suspend the diffuser in shallow water. When the diffuser operates it oxygenates the surface layer first. Then the currents gradually spread out away from the diffuser enlarging the aerated zone both shallow and gradually towards the depths. As the low DO develops on the bottom and becomes intolerable to fish they will instinctively move upward towards generally better water quality.


Darn, I didn't know about this. Now you are making me more nervous frown

This has been the worst winter yet since my pond has been stocked. To date I have just let the windmill aeration do its thing with the diffusers at the bottom.

Last edited by ETD66SS; 03/05/15 08:23 AM.