The 15000lt outdoor pond I am currently building will be equipped with waterfall pump and a filter for running this koi pond. Any suggestion on the capacity of waterfall pump/filter. Would it be sufficient if I just install the waterall pump and without the filter. Pls. enlighten me on this. I will be keeping 5 young (4inch) kois, would if be right if I add
mature ones too in the future as I worry the young ones might be bullied by the larger ones. Thanks once again for answers.

A contained body of water is subject to conditions such as dirt, insects, algae and decomposed vegetation that affect the water clarity and health. A filtration system is needed to balance the ponds ecosystem. This filtration system must match both the power of the pump and the volume of the water garden. The Pre Filter Box is for use with 200 and 320 Gallon Per Hour Fountain Pumps to provide mechanical filtration for use in water accent applications. In Mechanical filtration, …
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