AquaClear 70 Activated carbon (3 Pack) Superior adsorption of impurities. Broad spectrum organic compound removal. Improves water clarity, color and odor. Removes chlorine, smoke and aerosol spray contaminants. For fresh and salt water! AirFilters.com AquaClear 70 Activated Carbon provides Superior adsorption of impurities in your aquarium water. It removes chlorine, smoke and aerosol spray contaminants, keeping the aquarium water quality within safe parameters for its inhabitants. Additionally, it features broad spectrum organic compound removal, and improves the overall water clarity, color and odor. Purchase some AquaClear Activated Carbon today! This product can be used for both fresh and saltwater aquariums!