Tetra Whisper Bio-Bags Small Filter Cartridge, 2 count

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$4.69 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 compatible with Tetra's Whisper PF10 and 3i Power Filters (not included).

Instructions

Learn More About Tetra From Our Team of Experts

Questions & Answers

8 Customer Questions


can this filter be used in a pet drinking water fountain

Answer by ChewyJul 12, 2019
This filter is compatible with the Tetra Whisper Power Filter.

Is this filter slightly smaller at the bottom? 2.16 at top and 1.78 at bottom and 3.68 tall.

Answer by ChewyOct 06, 2018
The overall dimensions are 3.8 inches tall x 2.1 inches across at its longest point. The images do shows that the cartridge narrows a bit towards the bottom.

Do I need to turn off my filter system to just change the filter?

Answer by ChewyApr 23, 2018
We'd recommend unplugging the filter when changing the filter cartridge.

Will these filters work for 3.5 gallon tanks ?

Answer by ChewyNov 27, 2020
These Whisper Bio-Bags Small Filter Cartridge are designed to fit Tetra's Whisper PF10 (5-10 gallons) and 3i (up to 3 gallons) Power Filters.

4.6
Rated 4.6 out of 5 stars
107 Ratings

47 Customer Reviews



Rated 5 out of 5 stars
By jerry on Nov 11, 2025

Tetra fish filter

Came packaged well in a very short time. Price was much cheaper than local pet stores

Came packaged well in a very short time. Price was much cheaper than local pet stores


Rated 5 out of 5 stars
By Teddy on Jan 5, 2026

Short time it took to receive

It fits perfectly in my filter

It fits perfectly in my filter


Rated 5 out of 5 stars
By Richard on Aug 19, 2025

Delivered early

Came the day after I ordered no waiting

Came the day after I ordered no waiting


Rated 5 out of 5 stars
By Susan on Mar 11, 2025

filter

good description of product and good quality

good description of product and good quality


Rated 5 out of 5 stars
By JoAnn on Apr 30, 2025

Well made

it cleans my tank very well

it cleans my tank very well


Rated 5 out of 5 stars
By Kathy on Mar 31, 2025

Arrived on time

Convenient

Convenient


Rated 5 out of 5 stars
By Maggie on Jun 19, 2024

Fish tank filters

Received item very quickly.

Received item very quickly.


Rated 3 out of 5 stars
By darian on Jul 5, 2022

Better design

These have to much plastic, so cotton fills with debri quickly. Don't last very long.

These have to much plastic, so cotton fills with debri quickly. Don't last very long.


Rated 5 out of 5 stars
By Bunfish on Mar 26, 2022

Great Product

Great price, good quality. Happy with filtration it provides, water very clear using this filter.

Great price, good quality. Happy with filtration it provides, water very clear using this filter.


Rated 5 out of 5 stars
By BettaB on Jul 25, 2021

AwesomeGGG

Quick!! Product in stock. Easy checkout. I will use Chewy again for aquarium needs.

Quick!! Product in stock. Easy checkout. I will use Chewy again for aquarium needs.