The newest fish pond water is still clean after over a year with 3 fish in the pond.

Posted on May 31, 2022 by filter_guy
This is a sample of the water from the pond. Clean and odorless. The water is filtered by a biological slow sand filter in a 45 gallon barrel. The filter runs 24/7 with an overflow that allows the water that does not make it through the filter to just flow back into the pond. The fish are about 4 inches long. Goldfish.
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