Help keep your tank clean and clear with the Coralife Super Protein Aquarium Skimmer & Pump. It can be hung on your aquarium or used in sump to remove dissolved organic materials from the water before they break down. This skimmer and pump feature a needle-wheel system that creates a spiraling vortex of water and micro bubbles inside the chamber to attract fine proteins and organic compounds. It also has a wide neck collection cup that cleans easily with a bubble production diffuser to prevent the flow of micro-bubbles into your tank. Provide a clean and healthy environment for your underwater buddies with the Coralife Super Protein Aquarium Skimmer & Pump.