Fluval Biomax Bio Rings Filter Media, 17.6-oz

By Fluval
Rated 4.95 out of 5 stars
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$10.00Chewy Price
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$22.99Chewy Price
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About This Item

  • 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
  • More capacity than most biological filter media
  • Allow ideal water movement throughout the media
  • Reduces and controls harmful ammonia and nitrate
Play Video: Learn More About Fluval From Our Team of Experts
Learn More About Fluval From Our Team of Experts

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Fish TypeTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical FreshwaterTropical Freshwater
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwaterFreshwater
MaterialFoam

Questions & Answers

18 Customer Questions


Do we need a net bag for it or just put it in the filter like that?
Answer by ChewyNov 09, 2017
Remove the 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.

Can these rings be used in the refillable media cartridges that go in the Biowheel Penguin 350 hang-on filter? If so, do you recommend this over loose carbon?
Answer by ChewyMar 27, 2018
This product is intended to be placed directly into media basket or filter chamber, depending on canister filter style.

It states this product reduces ammonia..is there any proof it actually reduces ammonia?
Answer by ChewyJul 24, 2019
The manufacturer uses extensive research and development in production of their products. The bacteria colonies living in and on the biofilter media act as a nitrifying bacteria farm, releasing a steady supply of new beneficial bacteria to recolonize the entire aquarium.

I have a fluval 404 will these work. If so where should they be place at the top or bottom of the baskets?
Answer by ChewyMay 21, 2018
This product is suitable for all external filters. Place directly into media basket or filter chamber, depending on canister filter style. For optimal filtration, place at the end of the filtration process.


ReviewsWrite a Review

5
Rated 4.95 out of 5 stars
20 Reviews
100%
Would recommend to a friend
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20 Customer Reviews



Rated 5 out of 5 stars
By biomedia on Oct 6, 2021

useful but

will definitely change the ph of your tank when first introducing, so I would recommend daily monitoring for the first two weeks at least especially if using for a goldfish tank, as their slime coats are sensitive to lower ph. Great value. Don’t forget to rinse them


Rated 5 out of 5 stars
By KellyFB on Jun 13, 2021

Great prices!

The selection and prices can't be beat on Chewy! As a science teacher with a lot of classroom pets to take care of, I appreciate it. Fluval is my go to brand for aquarium supplies for sure.


Rated 5 out of 5 stars
By Peter on Mar 8, 2021

Turtles are gross

I have two red ear sliders and the tank has been a struggle, trying to keep it clean. This has helped a lot


Rated 5 out of 5 stars
By karma on Jan 22, 2021

Happy Fish

Anything to improve the water in the tank is good for the fish!


Rated 5 out of 5 stars
By kadotah on Jun 13, 2020

Great for canister tanks

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.


Rated 4 out of 5 stars
By allieazalea on Jun 26, 2020

too big of size for HOB

Becomes stained very easily, varying cuts and sizes, wish these came with bags


Rated 5 out of 5 stars
By keeper on Jan 15, 2020
Top 500 Contributor

great bio filter media

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.


Rated 5 out of 5 stars
By Tayler on Jan 11, 2020

Love these!

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.


Rated 5 out of 5 stars
By Ktorlando on Dec 28, 2019

Fluval Biorings

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.


Rated 5 out of 5 stars
By Amyluthien on Jul 2, 2019

Fluval Biomax Bio Rings

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.