The Fluval C4 Activated Carbon Replacement Media, 3-pack, is capable of adsorbing most liquefied impurities and dyes present in aquarium water. The carbon works to remove odors and discoloration from your tank. Fluval C4 Activated Carbon is suitable for freshwater or marine aquariums, but was exclusively designed for the Fluval C4 Power Filter.
Absorbs impurities that lead to discoloration and odor
Improves water clarity
Works to provide your fish with a healthy aquatic environment