... Biocell filter for fish farming,water treatment,filter mediaSuspension of biological filter media is a new microbial carrier, is the ... surface area, hydrophilic, strong impact, easy to hang membranes, biological activity, and good water circulation effect. The Bio Chip is ... water, high in oxygen content with a low BOD (Biological Oxygen Demand). Maturing the Kaldnes bio-media is important because ...