The BioStyle Customizable Cartridge allows you to optimize your BioStyle’s filtration by adding up to 120 mL of dry media to this cartridge. Add your choice or combination of dry, solid filter media into this empty cartridge based on your aquarium’s needs; filter media sold separately. The customizable cartridge inner capacity is 120 mL with dimensions of 0.57 x 2.3 x 5.8 inches.
This cartridge fits inside the filter chamber, in place of the 30 ppi filter foam, of the BioStyle Power Filter series. The quantity of cartridges that can fit in a BioStyle unit depends on the size of the filter. Timing to replace the cartridge depends on the media you put inside and depends upon aquarium size, number of fish and plants, and declines in filter performance. Rinse cartridge with water before use. Box includes one empty cartridge.