Tetra Whisper Aquarium Filter Cartridges

By Tetra
Rated 4.9 out of 5 stars


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$4.45Chewy Price
$7.99Chewy Price
$4.23Autoship Price
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In Stock
FREE 1-3 day delivery on first-time orders over $35

About This Item


  • Convenient, easy-to-use, three-stage filtration cartridges are designed to keep your aquarium crystal clear.
  • Double-sided mesh is dense to trap fish waste and debris.
  • Ultra-activated carbon works to absorb discoloration, contaminants and odors, keeping your fish tank in tip-top condition.
  • Replacement filter cartridges come ready to use.
  • Available in different sizes and counts.

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Frequently Bought Together

Tetra Whisper Aquarium Internal Filter, Black, 4-gal
Rated 2.6667 out of 5 stars
$9.99Chewy Price
Aqueon PURE Betta Beads Aquarium Water Care, 8.8-oz bag, Blue
Rated 3.2941 out of 5 stars
$5.49Chewy Price

Buy 2, Get 3rd Free- Mix & Match

Total Price: $19.93

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Fish TypeTropical FreshwaterBetta, Cichlid, Goldfish, Marine Fish, Tropical FreshwaterMarine Fish, Tropical FreshwaterMarine Fish, Tropical FreshwaterMarine Fish, Tropical Freshwater
Aquarium TypeSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, Freshwater
MaterialPlasticSynthetic Fabric, MeshSynthetic Fabric, MeshSynthetic Fabric, MeshSynthetic Fabric, Mesh

Questions & Answers

3 Customer Questions

Which side faces towards the water flow? The white cloth side it the reddish side?
Answer by ChewyJun 29, 2020
The white side of the cartridge faces the back of the filter or the wall.

What are the dimensions?
Answer by ChewyNov 01, 2019
The Dimensions of this filer is 5.91 x 3.9 x 2.52 inches.

What size of tanks are these filters for? There are a x-small and a small.
Answer by ChewyMay 17, 2020
These filter cartridges will fit AquaCulture Aquarium Kits up to 3 gallons.

ReviewsWrite a Review

Rated 4.9 out of 5 stars
20 Ratings
Would recommend to a friend

19 Customer Reviews

Rated 5 out of 5 stars
By Chelle on Jun 15, 2022

Glad I Ordered Two

Price is great and the cartridges work as they should. My toddler niece and nephew refuse to get it in their heads that they can’t feed our betta fish because over-feeding will kill the fish—I think they just like the snow globe effect the food has when it falls/moves through the water. Their mom left them unattended and the kids dumped the entire canister of food in the one gallon aquarium!! (I’m waiting to have the budget for something bigger) Thankfully the fish didn’t over-eat and didn’t choke on the horrifically dirty water while waiting for a water and cartridge change to happen.

Rated 5 out of 5 stars
By Dolores on Apr 2, 2022

Good Product

Use it for 1.5 gallon, works well and great price

Rated 5 out of 5 stars
By Michaela on Sep 21, 2021

The best filters!

These filter cartridges are the only ones that fit the fish tank we just bought with a built in filter. The filter is so quiet you can't even tell it is on. The water is crystal clear. I couldn't find this exact size of these filter cartridges anywhere else so thank you to Chewy for making them available!

Rated 5 out of 5 stars
By Kato on Jul 12, 2021


Product knowledge is outstanding. The CS team responses and expedites your order when needed asap. Just an overall fantastic company.

Rated 5 out of 5 stars
By Paula on Jan 18, 2021

Was Perfect!

They, Tetra, changed the packaging, was a bit nervous about ordering these. But as it turned out, It Was Exactly What I needed! Not to mention, I Got it FAST! Perfect!!

Rated 5 out of 5 stars
By Cindy on Apr 19, 2021

Great filters

Nice size for mini aquariums. Priced right, good quality item

Rated 5 out of 5 stars
By Zppc on Feb 20, 2021

Filters for tank

Good fit...will order again....fit as dis scribed.. That is it. Take it or leave it ...

Rated 5 out of 5 stars
By Tracy on Jan 17, 2021

Right product

Happy customer love the price. My Betta are happy with clean tanks. Will order again when I need them.

Rated 4 out of 5 stars
By Barry on Mar 1, 2021

Filters for one gallon tank

These filters are ok for the one gallon tank i have

Rated 5 out of 5 stars
By oakley on Jul 13, 2020

tetra x s filters

this was a great purchase as none of the pet stores in my area carry the extra small----they sell the aquariums but not the filters for the pump small is all that I could find here so thank you