Superior filtration for Reef, Marine, Jellyfish, & High pH Freshwater Aquariums Now featuring QuickWash Carbon™, a special 0.8mm extruded pelletized activated carbon that has 30% more surface area than our original carbon New carbon’s structure is harder, cleaner and reduces the potential of HLLE developing in your fish due to fine carbon dust particles Contains two high-grade hybrid ion exchange resins to produce a synergistic formula for the health and well-being of your aquarium inhabitants Excellent product for African cichlids