Tetra Whisper Bio-Bags Medium Filter Cartridge

By Tetra
Rated 4.6053 out of 5 stars
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Tetra Whisper Bio-Bags Medium Filter Cartridge, 3 count slide 1 of 5
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Tetra Whisper Bio-Bags Medium Filter Cartridge, 3 count slide 1 of 5

$4.28Chewy Price
$6.99Chewy Price
$4.07Autoship Price
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About This Item

  • 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.

Compatible Products

Keep your system running smoothly with Tetra filters.

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Fish TypeTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical Freshwater, Betta, Cichlid, Goldfish, Marine FishMarine Invertebrate, Goldfish, Marine FishTropical Freshwater, Marine Fish
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterSaltwaterFreshwater, Saltwater

Questions & Answers

5 Customer Questions

What are dimensions
Answer by ChewyDec 03, 2017
The filter cartridges are 3.5 x 3.5 x 6.5 inches.

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.

How often do these need to be changed?
Answer by ChewyNov 29, 2020
It is recommended to change the filters monthly.

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.

ReviewsWrite a Review

Rated 4.6053 out of 5 stars
76 Reviews
Would recommend to a friend

76 Customer Reviews

Rated 5 out of 5 stars
By ReptileMom on May 3, 2022

Fishy Filters

These filters have always been great. The last batch was defective, activated charcoal spilled everywhere, but usually this is a great no fuss product. Chewy makes saving and reordering pet supplies a breeze.

Rated 5 out of 5 stars
By Catlady49 on Apr 6, 2022

Tetra Whisper Bio Bags

These filters are perfect size. They were half the price at other big box stores. Delivery was only 2 days. Always use Chewy for all my supplies.

Rated 5 out of 5 stars
By Thrasher on Jul 14, 2021

Best Filter

The filter for the quiet tank filter fits perfect and is easy to use. There’s no problem putting it in and when it’s time to change all you have to do is pull it out and replace with another. It can’t get much easier than that!!

Rated 5 out of 5 stars
By Benji on Sep 14, 2021

great filters

Great filter I would recommend and will buy again, but no tracking at first

Rated 1 out of 5 stars
By whychewy on Jul 11, 2021

Filter bad

Horrible...flaky black powder everywhere. The picture shows how these came.

Rated 5 out of 5 stars
By Lana on Apr 29, 2021

Filters work as good as the other brands

These filters work great! At first I was skeptical because they are much more economical than other brands but they turned out to be just as good.

Rated 2 out of 5 stars
By Nikki on Apr 11, 2021

Cloudy water

It seems my fishes water clouds up much quicker since getting these and using them. In less than a month; we’re on our 3rd one

Rated 5 out of 5 stars
By Marge on Feb 17, 2021

Eazy to use

So convenient to use. What can I say? Take the dirty filter out and put a clean new filter in! It's just that eazy. I do this once a month. And I have very happy fish and a clean clear fish tank.

Rated 5 out of 5 stars
By Kathy on Jun 24, 2021

Great Product

Easy to assemble, work great. I highly recommend.

Rated 5 out of 5 stars
By Sharon on May 7, 2021

Refills for pump.

Bags are ready to use and fit snuggly into pump. Great filtration!