High quality activated granular carbon. Immediately removes impurities from the water coloring substances and causing water turbidity thanks to which it significantly improves its clarity. At the same time it removes medication residues and compounds accumulated in water. It also perfectly fits the needs of ULNS aquariums very heavily stocked with SPS corals. Dosage: 100 ml per 100 l of aquarium water. The product can be used both in the fluidised filter and in the filter mesh. We recommend rinsing it with RODI water before using Carbon. The recommended water flow is 500 l/h. Carbon should be replaced every 4 weeks. Keep away from children. Product for aquarium use only. Not suitable for human consumption.