hygger HG137-5W Bio-Bag Filter Cartridges for Aquarium: 6 Pack Aquarium Replacement Filter Cartridges

Features

• hygger Original Aquarium Filter Cartridge: For hygger HG137-5W hang-on back filter, include 6pcs Aquarium Filter Cartridges
• Deep Efficient Filtration: Double-layer high-density cotton effectively filters particles waste, fish feces and so on; Activated carbon removes odors; Zeolite effectively removes 95% of ammonia nitrogen from the water, purifies the water, increases dissolved oxygen in the water, and keeps the aquarium water environment in a healthy and stable state
• 3-in-1 Multi-stage Filtration: Physical filtration, biological filtration and chemical filtration three-in-one. hygger aquarium filter cartridge not only can remove water impurities and odor, but also can promote the cultivation of nitrifying bacteria for the aquarium to maintain the environment of the aquarium clean and health
• Easy Installation: Simply rinse the replacement cartridge in cool water, remove the surface carbon powder, align the keyway on the bottom of the cartridge and insert the cartridge into the filter chamber
• Tips: For optimal performance, replace the filter cartridge approximately every 2-4 weeks for cleaner water and fish