hygger 3.5W Hang On Back Aquarium Filter with Replacement Cartridges 4 Set

Replaceable sponge quiet hanging filter, washable reusable filter media.

• Triple-Layer Activated Carbon Filtration: Each filter pad combines high-density cotton and premium activated carbon to trap debris, remove fish waste and eliminate odors, polishing your aquarium water to crystal clarity.
• Energy Efficient Aquarium Hang-On Filter: 3.5 Watt hang on back aquarium filter provides stable output while saving energy.
• How to Use Aquarium Filter: S size suitable for frameless fish tanks and fish tank thickness within 0.2in (5mm). Before the first use, we recommend filling the filter with water, fish tank water level must be above or same height the water inlet of the surface skimmer.
• Powerful Filter System: Filtration, Circulation, Oxygenation 3-in-1, 3.5W water pump, powerful and energy saving, this aquarium filter can not only effectively filter impurities, debris in water, but also add some air bubbles into water to increase oxygen in fish tank, and the same time, water circulates. Hanging aquarium filter equipped with oil film valve, can remove float and oil film on the surface of the fish tank.
• Washable & Replaceable Bio Sponges: Activated carbon and biochemical cotton features a high density, much thicker, not easy to clog or damage. It can efficiently filter out impurities, such as residues and feces, helping to keep the water clean and clear. It is recommended to clean sponge 1 time a week.