Use a mechanical filter and a biological filter. A mechanical filter strains out leaves and other debris that can sink to the bottom of the pond and rot. A biological filter uses healthy bacteria to break down fish waste and keep the water clean.
Soden chose a filtering system that combines a biological filter with a mechanical filter, including a skimmer bag similar to those used in swimming pools. This system requires only a couple of minutes of maintenance each week.
A mechanical filter will free the pond water of unnecessary debris to prevent the accumulation of organic matters on the pond's basin. Fish and aquatic plants are the necessary components of an ecosystem fish pond.
See also: Water, Plant, Natural, Water feature, Patio
 
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