Kolar Labs Crystal Cal Activated Carbon – Small Jar, Activated Charcoal for Aquariums and Fish Tanks

CONTAINS 0.35 lbs (160 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