Fluval BIOMAX bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive. BIOMAX bio rings have more capacity than most biological filter media and allow ideal water movement throughout the media to ensure optimal contact time for efficient biological filtration. BIOMAX also reduces and controls ammonia and nitrate.
For Fluval filter models: 106, 206, 306, 406, FX5, FX6, 105, 205, 305, 405, 104, 204, 304, 404
It was really nice
Fluval Bio Max are one of the best Ceramic Rings that you can buy and are way better than other brands, by having a smaller hole in the middle that other brands they offer more anerobic zone and will also add to the nitrate reduction.
I bought this product at an very reasonable price compared to any other platforms selling this. Thanks to Indiefur once again for delivering such an good product on time..
Awesome product ... does the job well . Excellent filteration media and a must for every aquarium.