Does the cold weather affect the bottom temperature by raising fish and increasing oxygen?

In cold weather, raising fish and increasing oxygen have an effect on the bottom temperature, but it can generally be ignored.

Theoretically, if the air temperature is lower than the water temperature, the water temperature will certainly drop, and pumping air will stir the water flow and increase heat dissipation. It may be 0.5- 1 degree lower than normal.

From the practical point of view, if goldfish, koi fish and other cold-water fish are raised, a small amount of cooling caused by inflation has little effect on them, which can be ignored. If tropical fish need heat preservation, a small amount of cooling caused by inflation will increase the energy consumption of heat preservation. If the feeding density is not high, pumping can be reduced according to the situation.