Tetra Whisper Bio-Bags Medium Filter Cartridge, 3 count

$4.21 First Time Autoship Price
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$6.47 Chewy Price
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$7.99 List Price
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About This Item

Details

  • Designed to help keep your aquarium crystal clear.
  • Ultra-activated carbon works to absorb discoloration and odors, keeping your fish tank in tip-top condition.
  • Pre-assembled Bio-Bags are ready to use right out of the box.
  • Double-sided mesh is dense to trap fish waste and debris.
  • Disposable Bio-Bags are available in a 1-count and 3-count option.

Instructions

Learn More About Tetra From Our Team of Experts

Questions & Answers

4 Customer Questions


How often do these need to be changed?

Answer by ChewyNov 29, 2020
It is recommended to change the filters monthly.

Are these 90 125 mpg

Answer by ChewyFeb 05, 2018
The filters go by the gallons size of the tank. This filter fits Whisper Power Filters 10i, E, J, 10 and MicroFilter.

Can you open the top clamp to add other filter media and than reseal?

Answer by ChewyFeb 04, 2019
The Bio-Bags are not intended to be opened and refilled. It is advisable to replace Bio-Bags when they are clogged.

what size tank?

Answer by ChewyJul 18, 2021
These Medium Bio-Bags are designed to fit Whisper Power Filters 10, 10i, E, J and MicroFilter (not included).
4.6
Rated 4.6 out of 5 stars
395 Ratings

138 Customer Reviews



Rated 5 out of 5 stars
By Lorie on Nov 29, 2025

Another Amazing Customer Service Experience

Received the wrong style filter cartridge for my new aquarium setup. Called and the service rep (Caren?) listened to me and researched until we were sure we were

Received the wrong style filter cartridge for my new aquarium setup. Called and the service rep (Caren?) listened to me and researched until we were sure we were adding the correct cartridge to my autoship. Then she rushed me out a box so we could test it and be sure. I received the correct filter cartridge a couple days later, and my Betta Harry is doing great!


Rated 5 out of 5 stars
By Joan on Dec 22, 2025

This is the best filter I have found for my fish tank.

This filter keeps a lot of stuff from circulating throughout my fish tanks. Whether it's a 35 gallon or a 10 gallon tank.

This filter keeps a lot of stuff from circulating throughout my fish tanks. Whether it's a 35 gallon or a 10 gallon tank.


Rated 3 out of 5 stars
By Jean on Dec 28, 2025

Box was smashed

Looks like it had been run over. Still good inside believe it or not.

Looks like it had been run over. Still good inside believe it or not.


Rated 1 out of 5 stars
By Megan on Oct 2, 2025

Charcoal EVERYWHERE!

Quit sending them in the same box as my dog food!! Now that the filters are not sealed in bags, Charcoal gets EVERYWHERE!

Quit sending them in the same box as my dog food!! Now that the filters are not sealed in bags, Charcoal gets EVERYWHERE!


Rated 4 out of 5 stars
By Kate on Nov 16, 2025
Top 100 Contributor

Easy to install

Easy to install and can collect a lot before changing it out

Easy to install and can collect a lot before changing it out


Rated 5 out of 5 stars
By Edward on Jan 20, 2026

Value

Great item great price

Great item great price


Rated 5 out of 5 stars
By Mike on Jul 31, 2025

Happy fish and snails

Filters work beautifully! I use one per month. Wash off weekly

Filters work beautifully! I use one per month. Wash off weekly


Rated 3 out of 5 stars
By Jacqueline on Jul 30, 2025

I'm not sure it's filtering very well. May get different one next time. Ty

Not the same as before. Less charcoal so. Not as good. Ty

Not the same as before. Less charcoal so. Not as good. Ty


Rated 5 out of 5 stars
By Diane on Aug 28, 2025

Filter

The charcoal really makes a different

The charcoal really makes a different


Rated 5 out of 5 stars
By Sandra on Jul 19, 2025

Brand

The convenience of the bio bag and the brand

The convenience of the bio bag and the brand