Aqueon Filter Cartridge Large 6 Pack Customizable filtration – OASE offers

Customizable filtration – OASE offers additional chemical media cartridges that can be added to the BioStyle filter based on your aquarium needs

Whether you're a first-time bird owner or an experienced one

Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria

water conditioner and setup guide

The BIO-Wheel delivers superior wet/dry biological filtration for nitrifying bacterial growth

Aqueon Filter Cartridge Large 6 Pack Customizable filtration – OASE offersAqueon Replacement Filter Cartridges are dual sided, featuring dense floss with over 25% more activated carbon than the leading brands. These patented cartridges were designed to ensure even distribution of activated carbon. To use, simply rinse under cold water and easily install using the "FRONT" orientation tab. Aqueon Replacement Cartridges are available in: X Small, Small, Medium and Large. Replace cartridges every 4 weeks for optimal performance.