Keep your saltwater tank clean and clear with the Coralife Marine Aquarium Filter Cartridge. This three-pack of replacement carbon filters is made for use with the Coralife Marine Aquarium Filter. Each filter is made with high-quality, activated carbon that works to remove harmful waste from your saltwater aquarium and improve water clarity. Just one filter can help clean your 30 gallon tank for four to six weeks. Plus, the bottom key slot makes installation easy! Simply rinse before use.
3-pack replacement filters—each cartridge provides 4 to 6 weeks of clean marine water.
High-quality, activated carbon works to remove harmful waste from your saltwater aquarium and improve water clarity.
Installs in seconds with a bottom key slot for optimal alignment.
Bioholster contains healthy biological bacteria and does not need to be cleaned.