Material/s: Activated CarbonSize:10x10x5cmAn unclean aquarium is harmful to the life of your pet fishSay goodbye to the trouble of constantly changing cloudy aquarium waterUltra Strong Filtration & AbsorptionFilters and absorbs any dirt, or chemical that may be harmful to the health of your pet fishesThe adsorbed material is firmly controlled and oxidized to improve the filtration efficiency while extending the service life of the cubeSignificantly decreases the death rate of aquarium . Instead, their health level is increased in the process due to cleaner waterAbsorbs tannins and phenolsPrevents tank and water odorAvoids the water from getting murkyMaintains the water’s PH level as well as overall cleanlinessEasy to Use — Simply put it in the tank!Just wash it with soap and warm water, and then you can put it back in the tank againYour 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 needHOW TO USE:Wash the cube with warm water and soap before using.Recommended placement is near the water inlet of the fish tank pump.Do not position the grid filter downward, otherwise, it will clog up and affect the filtration effect.For best results, rinse or replace the filter every 3 to 6 months.Attention:We have perfected the packaging, double-layer corrugated box packaging, and wrapped in pearl cotton, but some damage during transportation can not be completely avoided.If you have high requirements on the product, please do not place an order, unfortunately this time we can not provide you with good Service.Thank you!