Keep your aquarium clean and healthy by growing beneficial bacteria with Fluval Biomax Bio Rings Filter Media. One of the most important ways to maintain good water quality and keep your fish thriving is seeding your aquarium with good bacteria. This bacteria breaks down harmful ammonia from fish waste and other organic matter and starts the aquarium nitrogen cycle. Fluval Biomax Bio Rings Filter Media have a complex pore system creating an optimal environment where this beneficial bacteria can thrive. These small, cylindrical filter media have more capacity than most biological filter media, allowing aquarium water to have optimal contact time for efficient biological filtration that reduces and controls ammonia.
Biological filter media keeps aquarium clean and healthy, maintains good water quality, and keeps fish thriving
Complex pore system create optimal environment for beneficial bacteria to thrive
Use to provide biological filtration. Suitable for all external filters.
Remove protective plastic bag and rinse thoroughly with terrarium-safe, chlorine-free water. Place directly into media basket or filter chamber, depending on canister filter style. For optimal filtration, place at the end of the filtration process.
Rinse monthly using water from the terrarium. Never rinse with tap water or any water that could contain chlorine. Replace every 6 months, depending on fish load.
Do not replace all filter media simultaneously. Stagger media replacement to ensure constant bacterial populations.
These are a great deal for the price and are a one time purchase so you can’t go wrong. I rinse them in a bucket with aquarium water after each water change and have never had any problems.
too big of size for HOB
on Jun 25, 2020
Becomes stained very easily, varying cuts and sizes, wish these came with bags
great bio filter media
on Jan 15, 2020Top 250 Contributor
I usually use this product for my aquarium, but I had decided to change to a different bio media when I couldn't find it at the store. After 2 months, I noticed my fish weren't doing so well. So I changed back and they are healthy again.
on Jan 10, 2020
I love these things. They are bigger than I had expected, but I have them placed in my HOB filter and it's doing wonders for my tank. Glad I got these. Very satisfied with my purchase.
on Dec 28, 2019
Perfect for large tanks and aquatic life that produces large volumes of waste. I use this in my turtle tank and it keeps it clean for a couple months in addition the other filter media.
Fluval Biomax Bio Rings
on Jul 2, 2019
I purchased these to replace some plastic bioballs that came with a canister filter I had. The porous nature of these rings will support a much larger colony of beneficial bacteria than any of the plastic balls available on the market.
The best product for bio media
on May 8, 2019
A must for the safety for your aquarium and fish. Check out other fluval products.
A true satisfied customer.
on Dec 13, 2018
Comes with a really good amount for the price. Way less expensive than other sites. Filled an entire tray in my 100 gallon canister filter with one box!
Awesome would recommend
on Dec 21, 2018
These are awesome great for holding the hood bacteria would highly recommend
on Aug 1, 2018
Great product I bought these to replace the bio rings that came with my marineland filter. Chewy's price and service is the best.