Maintain a healthy and thriving aquatic environment with more ease and less mess using the Aqueon QuietFlow Internal Filter with SmartClean Technology. Featuring innovative SmartClean Technology, this filter allows you to quickly perform partial water changes without removing the filter, reducing mess and simplifying the process. Its quiet operation ensures a peaceful environment for both you and your aquatic life. The Bio-Holster cartridge holder provides a space for beneficial bacteria that break down waste, while the Aqueon EcoRenew cartridge is made from fibers infused with carbon to remove pollutants, organic debris and odor from the water. Both the cartridge and holster feature a NoDrip design to help eliminate water spills when changing cartridges. Designed for versatility, the adjustable flow rate supports a range of freshwater and saltwater aquarium sizes. The uses Aqueon QuietFlow Internal Filter with SmartClean Technology uses Aqueon EcoRenew Replacement Filter Cartridges and is available in extra small, small and medium sizes. -EASY WATER CHANGES: SmartClean Technology lets you quickly perform partial water changes without removing the filter, making maintenance simple and less messy. -QUIET OPERATION: Engineered for silent performance so you can enjoy a peaceful aquarium environment without distractions. -LESS MESS: Simply lift and rotate the filter nozzle to change water without making a splash. Cartridge and holster feature a NoDrip design that helps to eliminate water mess when changing them. -INNOVATIVE FILTRATION: Includes a Bio-Holster cartridge holder for beneficial bacteria to grow and an Aqueon -EcoRenew cartridge made from fibers infused with carbon. Auto-start pump requires no priming, automatically restarts if power is interrupted and restored. -FOR A VARIETY OF AQUARIUMS: Adjustable flow rate covers a range of freshwater and saltwater aquarium sizes. Hanging clip and suction cups allow for fast, easy setup in both framed and frameless aquariums. Available in extra small, small and medium.