Friday, November 10, 2006

Pond water layers in winter

In the cold of winter, you will notice your fish stay near the bottom of the pond. Why? Because the water is warmer and denser there. As temperatures fall, the water forms layers of water with the warmest layer at the bottom. With each temperature drop, a new colder layer is formed, but the bottom layer stays warmest.
The layering of the water helps the fish stay healthy, helps them absorb oxygen.
All of this assumes your pond is built below your frost line: That's the depth your soil or water freezes solid.

So do not keep your pumps running during the winter. It can kill your fish.

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