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Applications of Sand in Reef Aquariums:
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By Eric Borneman
Intro:
In 1989 a unique method of maintaining water quality was described and patented (Jaubert 1989, 1991; Jaubert and Gattuso 1989). The method was designed primarily for use in aquariums, although other uses were conceived (Jaubert 1991). The patent belonged to Jean Jaubert, and the method eventually became known as the Jaubert method of reefkeeping. The principles of the method described in the original patent were numerous and often speculative, but several of them are notable. First, water quality is maintained biologically. The aquarium was considered a “reactor,” and the filter was a bed of calcareous sediments separated into layers by screen and sitting atop a void water space that later became known as a plenum. The concept was that oxygen gradients were created where separate processes of nitrification and denitrification were established, allowing for low nutrient levels in the “reactor.” -
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