Fluval Biomax Bio Rings Filter Media, 17.6-oz

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About This Item

Details

  • 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.

Instructions

Learn More About Fluval From Our Team of Experts

Frequently bought together

Questions & Answers

18 Customer Questions

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 Chewy • Mar 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 Chewy • Jul 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.

Is this for use within the U3 canister?

Answer by Chewy • Mar 16, 2018
This Media is suitable for the U3 Fluval Underwater Filter for Aquariums.

Can this be used in the C4 fluva filter?

Answer by Chewy • Jun 11, 2024
This media is compatible with 06/07 Series Canister Filters, FX Series Canister Filters and most other filters.
Reviews
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4.7
Rated 4.7 out of 5 stars
73 Ratings
Terms & Conditions

30 Customer Reviews

Rated 5 out of 5 stars
By Lynne on Apr 6, 2025
Top 1000 Contibutor

Biomax Bio Rings

I have some in my filter. I can't tell if it is doing anything. I have a blue female gourami that has not been well since November I was hoping these would he

I have some in my filter. I can't tell if it is doing anything. I have a blue female gourami that has not been well since November I was hoping these would help.

Rated 3 out of 5 stars
By Gloria on Mar 14, 2025

These Bio Rings are large

I haven't used them yet. They should be used with a large filter. I have small external filters for 20-30 gallon tanks.

I haven't used them yet. They should be used with a large filter. I have small external filters for 20-30 gallon tanks.

Rated 5 out of 5 stars
By mmalone79 on Feb 20, 2025

How fast it arrives

I needed to do a water change on my aquarium and my stuff was here and ready

I needed to do a water change on my aquarium and my stuff was here and ready

Rated 1 out of 5 stars
By Laurence on Jun 27, 2024

Packing Problem

Again I order cat litter and fish tank for me filter. The items were in the same box and my filter were crushed. This is the second time this happened.

Again I order cat litter and fish tank for me filter. The items were in the same box and my filter were crushed. This is the second time this happened.

Rated 5 out of 5 stars
By Cheyann on Oct 25, 2024

The name brand

It something that is needed and affordable

It something that is needed and affordable

Rated 5 out of 5 stars
By Brenda on Jun 14, 2024

Always fast service!

Needed supplies for my 2 red eared sliders.chewy had everything I needed .Quick delivery!

Needed supplies for my 2 red eared sliders.chewy had everything I needed .Quick delivery!

Rated 5 out of 5 stars
By John on Feb 2, 2025

Price

Works great

Works great

Rated 5 out of 5 stars
By Terri on Jun 12, 2024

Favorite

Chewy products have been great. These are hard to fnd and they work great.

Chewy products have been great. These are hard to fnd and they work great.

Rated 5 out of 5 stars
By Patricia on Nov 17, 2023

Great Find

I needed filter media for a relatively expensive filter I'd purchased last year that is no longer manufactured and they do not off any replacement media, took a

I needed filter media for a relatively expensive filter I'd purchased last year that is no longer manufactured and they do not off any replacement media, took a chance on this and it worked out perfectly at a very reasonable price.

Rated 5 out of 5 stars
By Richard on Dec 4, 2023

Fluval Biomax Bio Rings Filter Media

Exactly what I ordered. Would have preferred the 1,000 gm size.

Exactly what I ordered. Would have preferred the 1,000 gm size.