Brightwell MicroBacter7 2000mlThis is the 2000ml size bottle. Complex system of non pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish biological filtration in new aquarium set ups,and to enhance the rate of nitrification, denitrification, and organic waste degradation inmarine and freshwater aquaria through complete nutrient remineralization. Supplied in a state of suspended animation for maximum longevity. Formulated
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