PolypLab Pro-Carbon (4000ml) PolypLab Pro-Carbon (4000ml) is a bulk-size pelletized activated carbon for aquariums that need regular water polishing and organic removal. Suitable for freshwater and saltwater systems, Pro-Carbon helps maintain clear water while adsorbing impurities, dissolved organics, toxins, and medication residues. Bulk Pro-Carbon for Larger Aquariums and Fish Rooms The 4000 mL size is ideal for larger reef aquariums, high bioload systems, service accounts, fish rooms, and customers who replace carbon frequently. Its pelletized format helps reduce dust and makes handling cleaner when filling larger media bags or reactors. PolypLab Pro-Carbon 4000ml Features 4000 mL bulk container of high performance activated carbon. Designed for freshwater and saltwater aquarium use. Helps remove dissolved organics, discoloration, impurities, toxins, and medication residues. pH balanced pellet form helps reduce dust and fines. Very low phosphate output helps protect reef water quality. Useful for larger aquariums, reef systems, fish rooms, and frequent maintenance routines. Can be used in media bags or compatible media reactors. Specifications Product type: Pelletized activated carbon Size: 4000 mL System compatibility: Freshwater and saltwater aquariums Primary use: Water clarity, polishing, and dissolved organic removal Placement: Media bag, sump, filter chamber, or media reactor Directions for Use Rinse Pro-Carbon with clean freshwater to remove dust before use. Place in a media bag between fine filter media in a high-flow section of the sump or filter, or use in a compatible media reactor. Replace as needed based on water clarity, aquarium load, and maintenance schedule. What's Included 1 container of PolypLab Pro-Carbon (4000ml)