Crystal-Clear Water Without the Phosphate Spike Ordinary carbons pack down, choke water flow, and quietly leach phosphate that feeds algae. You want clear water and organic removal without trading it for a fresh algae problem. MatrixCarbon is a truly unique activated carbon formed as a spherical bead for optimum hydrodynamics, so it will not pack and permits maximum water flow across its high density of macroporous binding sites. As a bituminous coal-based macroporous carbon, it targets the larger organic molecules that cloud aquarium water, outperforming other high grade carbons by at least two-fold in capacity, adsorption rate, and duration of use. It has the lowest detectable leachable phosphate of all major carbon brands tested and does not raise pH above 7.0. MatrixCarbon is developed in-house by the chemists at Seachem Laboratories, the chemistry-driven company founded in 1979 in Madison, Georgia. That laboratory expertise is why it is engineered as the only spherical carbon on the market, with a high density of macroporous binding sites that give it exceptional capacity and effectiveness while keeping leachable phosphate the lowest of all major brands tested. Rinse MatrixCarbon before use and place it in a filter bag. Position the bag to maximize water flow through it, in a canister filter, media chamber, or high-flow trickle filter area. Use 250 mL per 400 L (100 US gallons) and enjoy several months of clear water per charge. Upgrade to carbon that keeps water clean, not fed. Add to cart. What It DoesMatrixCarbon is a bituminous coal-based, macroporous activated carbon formed as the only spherical carbon on the market, so it will not pack and permits maximum water flow and contact with its high density of macroporous binding sites. Macroporous carbons remove primarily larger organic molecules such as nitrogenous waste and are best suited to water filtration. It has a very low ash content and minimal impact on pH, not raising pH above 7.0 even in distilled water. It has the lowest detectable leachable phosphate content of all major carbon brands tested, and outperforms other high grade carbons by at least two-fold in total capacity to remove aquarium organic matter, rate of adsorption, and duration of use. Directions250 mL will easily treat 400 L (100 US gallons) for several months. Use in a filter bag. Rinse before use. For best results, MatrixCarbon should be placed so as to maximize the flow of water through it. It may be used in a canister filter, chemical filtration module, box filter, or any high flow area of a trickle filter. Why Seachem MatrixCarbon Spherical, non-packing design: as the only spherical carbon on the market it will not pack down, permitting maximum water flow and contact across its binding sites. High-capacity organic removal: its macroporous structure targets larger organic molecules and outperforms other high grade carbons by at least two-fold in capacity, adsorption rate, and duration of use. Lowest leachable phosphate: it has the lowest detectable leachable phosphate content of all major carbon brands tested, so it clears water without feeding algae. Filter-friendly and pH-safe: it works in a canister, chemical filtration module, box filter, or high-flow trickle filter area in a bag, with minimal impact on pH, not raising it above 7.0 even in distilled water. Best ForFreshwater and marine aquariums, including reef systems, where clear, organics-free water is wanted without a phosphate spike. Especially suited to canister and high-flow filter setups and to keepers who found other carbons packed down, choked flow, or fed algae. FAQ How long does it last? 250 mL will easily treat 400 L (100 US gallons) for several months, and it outperforms other high grade carbons in duration of use as well as capacity and adsorption rate. Where does it go in my filter? Rinse it and place it in a filter bag positioned to maximize water flow, in a canister filter, chemical filtration module, box filter, or any high-flow area of a trickle filter. Freshwater or marine? Both. Its very low leachable phosphate and minimal pH impact make it well suited to freshwater, marine, and reef aquariums alike.
