Water conditioning filter media for use with all rain forest fishes and plants. Contains Ketapang, the Asian breeder's secret with oak and black peat. Helps amplify color, as well as increasing fertility and spawning. Replicates real blackwater with herbal and mineral extracts containing fulvic and humic acids, natural vitamins, hormones, trace elements and enzymic activated biocatalysts discovered in the Amazon and Asian rain forests. Enhances biological filtration. Use 1 cup per 20 gallons. Place into filter bag and into your filter system. Each package contains approximately 4 cups.