Fritz Carbon AG is a high-quality, 4x8 mesh granular, activated carbon ideal for use in fresh or saltwater aquariums with all types of filters. Fritz Carbon AG removes dissolved organic compounds (DOC), agents that discolor aquarium water and cause odors, chlorine and chloramines. It will not leach phosphate into the aquarium.

Produced from bituminous coal by a high-temperature activation process under stringent quality control. Fritz uses a special, patented, high-pressure steam activation process that produces superior pore space throughout each individual granule. The carbon is then washed in hydrochloric acid to reduce water and acid-soluble compounds and improve purity. This treatment creates the porosity by leaving a carbon skeleton sponge. It has a large surface area (each ounce contains over 300,000 square feet of usable, adsorptive surface area), high mechanical hardness, high pore volume and chemical stability.