Water Cleaner: Aquarium water purifiers are strong ingredients that effectively filter out dirt, turbidity, and odors to maintain clear, healthy water for your pet’s habitat. Your fish tank will stay clean for months. Functional adsorption: This water purifier cube has a strong adsorption and decomposition effect, which can absorb dirt and odor, and oxidize adsorbed substances. It improves the efficiency of adsorption while extending the service life. Easy operation: the activated carbon is easy to use, you can rinse it with clean or soapy water, then use put the water purifier cube in the water tank. Repeated use: just wash it with soap and warm water and put it back in the tank. For best results, it is recommended to replace the water filter every 3-6 months. Good Density: Aquarium water purifier cubes are made from activated carbon blocks with a grid pore structure, which can effectively help filter dirt, turbidity, odors, etc. in the bin.