Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal For Aquariums And Fish Tanks

CONTAINS 0.7 lbs (320 g) – FAST RESULTS: Works quickly to eliminate cloudy water colors and odors overnight – guaranteed TRUSTED SOURCE: Made according to Food Chemicals Codex (FCC) standards; Bringing you the highest quality bulk and packaged Activated Carbon HIGH PERFORMANCE: Laboratory grade granular activated carbon; Specifically made with optimum pore structure for aquarium use WORKS IN ALL FILTERS: Large granules allow great flow in any filter media bag cartridge or filter for efficient filtration; Use in reactors canister filters intank filters or hanging filters EASY TO USE: Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use