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Calcium Carbonate

    …water is critical to the health of the fish. The carbonate hardness of your pond or lake should ideally fall between 50 ppm and 200 ppm. Fish Friendly The beneficiaries of the hard water's buffering calcium and magnesium are your fish. Carbonate hardness in your pond or lake affects the sensitivity…
    …algaecide check the water temperature pH and carbonate hardness. Some algaecides like Algae Defense work best when water temperatures are above 60°F. Many algaecides are copper based and should not used with koi trout or goldfish unless carbonate hardness (KH) is above 50 ppm. Also remember to…
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