BIO-FX is a premium biological media designed for use with canister filters and sumps of all sizes, including Fluval’s 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.
 
Features:
Biological filter media
Safe, Inert Ceramic Material
Designed for use with sump filtration and canister filters of all sizes
Deep pore structure with interconnected micro-tunnels offers vast surface area for billions of beneficial nitrifying bacteria to establish and thrive
Linked cavities permit free and even water flow, discourage blockages and prolong contact time for superior and effective biological filtration
Allows for the establishment of a high concentration of nitrifying bacteria to reduce ammonia and nitrite quickly and efficiently for a healthier aquarium
For best results, rinse monthly using aquarium water and replace partially every 6 months
For optimal filtration, place in the last stage of the filtration process
Usage: For most aquariums, 1 filter basket layer of BIO-FX is adequate. For higher bio loads, additional BIO-FX can be used