This disposable filtration cartridge combines the important functions of mechanical and chemical filtration. It contains high quality activated carbon that was chosen for its superior performance during extensive laboratory testing under actual aquarium conditions. To further enhance its efficiency, the activated carbon is supported within the cartridge by a uniquely designed baffle system that more evenly distributes carbon from the top to bottom. This revolutionary design assures that more water will contact the carbon on every pass through the filter, resulting in cleaner, clearer aquarium water, and a healthier aquarium for all its inhabitants. Moreover, two layers of specially selected polyester fabric enclose the high quality activated carbon in a single, convenient unit that is easy to change without disturbing the biological filter. The polyester fabric effectively traps particulate matter, such as uneaten food and solid fish wastes. The particles are held tightly within the cage-like structure of the fabric, permitting efficient removal of wastes when the cartridge is changed. Shipping-Weight: 1.3 lbs |