Maintain the sanitation of your water pets' habitat with the help of this Eco-Aquarium Water Purifier Cube. An unclean aquarium is harmful to the life of your pet fish. Say goodbye to the trouble of constantly changing cloudy aquarium water. This cube features a honeycombed ultra-absorption activated carbon block that filters and absorbs any dirt or chemicals that may be harmful to the health of your pet fishes. It has a solid composition, with no powder or impurities, ensuring that it does not cause black water. The adsorbed material is firmly controlled and oxidized to improve filtration efficiency while extending the service life of the cube. This significantly decreases the death rate of aquariums and increases the health level of your fish due to cleaner water. It also absorbs tannins and phenols, prevents tank and water odor, and avoids the water from getting murky. Maintaining the water's pH level and overall cleanliness, this cube is easy to use - simply put it in the tank!Your beautiful water companions make you feel calm and relaxed after a long day at work. Thus, they deserve all the cleanliness they can get in the tank they live in. This Eco-Aquarium Water Purifier Cube is all you'll ever need. It is made of activated carbon and measures 10x10x5cm. To use, wash the cube with warm water and soap before placing it near the water inlet of the fish tank pump. Avoid positioning the grid filter downward to prevent clogging and maintain filtration effectiveness. For best results, rinse or replace the filter every 3 to 6 months.Please note that we have perfected the packaging of this product with double-layer corrugated box packaging and wrapped in pearl cotton. However, some damage during transportation cannot be completely avoided. If you have high requirements for the product, we apologize that we may not be able to provide you with the best service. Thank you for your understanding.Package Inclusion: 1 pc X Eco-Aquarium Water Purifier CubeKey Features:Honeycombed ultra-absorption activated carbon blockSolid composition, no powder, no impuritiesSignificantly decreases aquarium death rateAbsorbs tannins and phenolsPrevents tank and water odorAvoids water from getting murkyMaintains water's pH level and overall cleanlinessEasy to use - simply put it in the tank