Upgraded formula: Instead of the traditional blue coarse cartridge, we use a 3-in-1 coarse cartridge with activated carbon, which better filters fine particles and adsorbs odors without restricting the flow of water, providing a healthier environment for your fish
Sufficient Filter Media Configuration: Includes 6 white filter pads, 2 three-in-one coarse filter pads, and 2 bags of activated carbon for long-term use
Longer life cycle: Washable and reusable after cleaning
Efficient: Provides both mechanical and biological filtration
