Choosing a Koi Pool Filter

[unable to retrieve full-text content]Pond filters won't just make your water clearer, but, more importantly, they remove the organic waste, ammonia and nitrates out of your pond water. Without a filter removing these from the water, your koi species of fish could ...

Source: http://tinyarticle.com/Art/450421/24/Choosing-a-Koi-Pool-Filter.html

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