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Sera marin bio reefclear, a sera biotechnology product for saltwater aquariums, breaks down ammonium and nitrite due to the purification bacteria it contains. The included mineralic volcanic rock removes pollutants, effectively binds turbidities and provides settling space for the purification bacteria. For healthy, clear and biologically active water. Dosage sera marin bio reefclear: 25 ml for 25 l water.
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