The skimmer's large reaction chamber allows the air and water to mix effectively to efficiently strip the organic waste from water molecules, while its unique 32 needle-wheel impeller is designed to produce the optimal bubble size for maximum protein collection. Compact yet powerful, the PS2 Protein Skimmer helps remove dissolved organic compounds and other harmful substances from your nano aquarium before they have a chance to break down into dangerous waste. Up to 20 US Gal (80 L)

Dimensions: 3 L x 3 W x 10 H" (8 L x 8 W x 26 H cm), Cup dimensions 2 L x 2 W x 3 H in (5 L x 5 W x 7.5 H cm)

• Designed for saltwater aquariums between 5 and 20 gallons
• 32 needle-wheel impeller increases air-to-water contact ratio, creating ideal bubble size for maximum protein collection
• Adjustable flow regulators control amount of air entering reaction chamber to produce perfect amount of “skimmate”
• Adjustable water-level control valve regulates skimming performance
• Large reaction chamber mixes air and water effectively to remove organic waste from water molecules
• Clear collection cup allows for easy monitoring of waste and removal for cleaning
• Versatile mounting options – adjustable hanging bracket and suction cups included
• Modular design is easy to access and clean