Description This fish tank filter system is designed to provide efficient filtration, oxygenation, and water circulation in one compact unit. Its sleek and modern design fits seamlessly into any aquarium setup, ensuring your fish have a clean and healthy environment. Ideal for small to medium-sized tanks, it helps maintain crystal clear water. Features -Color:Multi -Material:Plastic -Size:20.50X7.00X4.00cm/8.06X2.75X1.57in -Compact design: designed for small aquariums, this compact filter saves space while delivering powerful filtration, making it ideal for desktops or small living spaces - functionality: combines filtration, circulation, and oxygenation in one unit, simplifying maintenance and ensuring optimal water quality for your fish -Efficient water cleaning: the advanced filtration system effectively removes impurities, keeping your aquarium water crystal clear and safe for aquatic&nbsp -Builtin oxygenation: enhances water oxygen levels with its integrated aeration feature, promoting healthier fish and a thriving aquatic environment -Quiet operation: operates silently to create a peaceful atmosphere, allowing you to enjoy your aquarium without disruptive noisePackage list: 2x quartz balls 200g 5 x nitrification capsules 1 x biochemical cotton