sera Marin Bio Reefclear Filter, 100 ml

a sera biotechnology product for marine water 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.Box Containssera marin bio reefclear 100 ml