Pond Boss Forums INTRO Questions & Observations Ice, Snow, and Winter Fish Kill Potential

Until my new rationale chances, it is better to have a deep water diffuser going and super cooling a large portion of the pond with high DO and mildly stressed live fish rather than having a small near shore area aerated and dead fish. Which way makes more sense? Fish appear to survive just fine in the super cold water in far northern streams with open water (rapids) during very cold winters. The main exception is where shad and probably prior stressed fish are present and they do not tolerate super chilled water very well. I have measured winter stream temperatures to be 33-34F.