Homemade Biological Pond Filter
A homemade biological pond filter based on a standard filter design using off the shelf products.
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Check my website for links to the bulkhead fittings:
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For an alternative diy type pond filter see the skippy pond filter http://www.skippysstuff.com/biofiltr.htm
To learn more about how pond filters actual work google "pond nitrogen cycle" or click the following link http://lmgtfy.com/?q=pond+nitrogen+cycle
"Cold Funk" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/