Pond straw has been used for decades to clarify the water in fish ponds and water gardens. Here's why and how pond enthusiasts are using this natural solution. Online, May 26, 2013 (Newswire.com) - ...
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How four fish imported to clean ponds became one of America's biggest invasive species problems
In the 1970s, wildlife and aquaculture managers in the southern United States imported four species of carp from Asia, bighead, silver, grass and black carp, intending to use them as a natural, ...
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