Eco-aquarium Water Purifier Cube With 10x10cm And Ultra Activated Carbon. Features An Unclean Aquarium is Harmful to the Life of Your Pet Fish. Material/s: Activated Carbon An Unclean Aquarium is Harmful to the Life of Your Pet Fish. Maintain the Sanitation of Your Water Pet's Habitat with the Help of This Eco-Aquarium Water Purifier Cube. Honeycombed Ultra-Absorption Activated Carbon Block Solid Composition, No Powder, No Impurities, Does Not Cause Black Water. Say Goodbye to the Trouble of Constantly Changing Cloudy Aquarium Water. Ultra Strong Filtration & Absorption Filters and Absorbs Any Dirt, Bacteria or Chemical That May Be Harmful to the Health of Your Pet Fishes. HOW TO USE Wash the Cube with Warm Water and Soap Before Using. Recommen 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. Size 5*5*5cm 10*10*5cm 10*10*10cm Package Inclusion 1 PcX Eco-Aquarium Water Purifier Cube. We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.