[Pack of 4] - Marina Canister Filter Replacement Bio Media 30 count

Marina Bio Media has been specially developed to provide the ideal breeding environment for beneficial bacteria. This long lasting form of media maintains the important biological balance within your aquarium.

• Provides Large Living Area for Beneficial Bacteria
• Maintains Healthy Biological Conditions
• Safe for Freshwater and Marine Environments
• For CF20, CF40, CF60, CF80
• Contains 30 Pieces