Fluval Carbon Impregnated Foam Pad for FX Series 2PK

Fluval Carbon Impregnated Foam Pad for FX Series is a great way to keep your freshwater or saltwater aquarium crystal clear. The Carbon Pad should be used in conjunction with Fluval Fine Pads to optimize the purity of aquarium water. For freshwater and marine environments. Fluval FX Series Water Polishing Filter filter pad replacements should be changed approximately every 1 months, though they can be rinsed clean between filter changes to extend filter life.