I'm guessing well water temp is closer to 63-64 degrees. If the pond was not sealed then it is a groundwater pond and it will fluctuate in water level according to the water level in the ground. A well is a great idea, but make sure that you bounce the water over rocks or through a packed column to add O2 to the water and remove any harmful gasses that may be in it.

If your pond is a groundwater pond, then you must make sure that your well will pump water in faster than it will leak out. As an example, my groundwater pond, when the water table is low and I try to fill the pond, will leak out 18 GPM with the pond still 24+" shy of full pool.

When water temps climb, the majority of the fish in the pond will cut back on eating. Catfish like warm water, so they keep their appetite.


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