Aquarium Filter Cartridges
Filter cartridges can cover mechanical filtration, chemical filtration, or both mechanical and chemical filtration in your aquarium. They come pre-filled with carbon, phosphate, nitrate, or other media. Great features of filter cartridges include the ability to trap dirt, remove impurities, and allow the best ratio of water-to-carbon contact. A cartridge needs changed about once a month. When you buy a fish tank, you will know if you will be using filter cartridges for your media. Aquariums designed to use filter cartridges have a space that allows you to easily slide the cartridge into place.