Fluval Bio-FX Biological Media 2 liter double tap unit Convenient Marineland Rite-Size Filter Cartridges

Convenient Marineland Rite-Size Filter Cartridges come ready to use with each filter

For normal cleaning and to maintain a clean aquarium: Add 20 ml (4 capfuls) per 25 US-gallons (94

resealable package

Available for both tropical or desert habitats

Initially use about 1 XPort PO4 Cube for every 20 U

Fluval Bio-FX Biological Media 2 liter double tap unit Convenient Marineland Rite-Size Filter CartridgesBIO FX is a premium biological media designed for use with canister filters and sumps of all sizes, including Fluvals flagship FX series. Featuring a deep pore structure with interconnected micro tunnels, BIO FX offers a vast surface area where billions of beneficial nitrifying bacteria can thrive. CHOOSE A HIGH PERFORMANCE BIOLOGICAL FILTER MEDIA: FLUVAL BIO FXThere are many choices when it comes to biological filter media, which begs the question: