Fluval SK400 Aquarium Surface Skimmer - Efficient Protein Skimmer for Saltwater & Freshwater Tanks - Perfect for Reef Aquariums and Fish Tanks

The SK400 Surface Skimmer removes unwanted water surface film to help improve oxygenation and light penetration for a cleaner and healthier aquarium. Over time, surface films can develop from oils on your skin, household dust, cooking smoke, fat content within fish food and more.

These films are not only visually unsightly, but also reduce dissolved oxygen (required by fish to breathe) and decrease light levels (needed by live plants to grow).

• Unique backside spacer permits placement on rimmed and rimless aquariums.
• Floating intake assembly self-adjusts to water level fluctuations so unit runs continuously.
• Compact size – unit can be positioned anywhere in aquarium without obstructing view.
• Modular design allows parts to be easily accessed, removed, and cleaned.
• Energy-efficient – draws only 3.3W for low-cost operation