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Tetra Whisper Assembled Bio-Bag Filter Cartridges

4.5 out of 5 stars 408 customer reviews
| 12 answered questions

Price: $5.24 & FREE Shipping on orders over $49. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Medium, 3-Pack
  • Conveniently Assembled and Ready-to-Use
  • Like the unassembled, the-Packages are color-coded, making it easier than ever to remember which size to purchase
  • Easy to Assemble, Easy to Replace
  • Please read all label information on delivery
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The Add-on program allows Amazon to offer thousands of low-priced items that would be cost-prohibitive to ship on their own. These items ship with qualifying orders over $25. Details
34 new from $4.08 2 used from $7.09

Tetra Color Fusion Aquarium
$5.24 Add-on Item & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Tetra 26169 Whisper Bio-Bag Cartridge, Medium, 3-Pack
  • +
  • Tetra 25992 Whisper 10 Bio Foam Grid Replacement Kit for Aquarium Filter
Total price: $12.13
Buy the selected items together


Product Description

Size: Medium, 3-Pack

For the ultimate in convenience, choose assembled Whisper bio-bag cartridges. Like the unassembled, the packages are color-coded, making it easier than ever to remember which size to purchase.

Product Details

Size: Medium, 3-Pack
  • Product Dimensions: 3.5 x 3.5 x 6.5 inches ; 3.8 ounces
  • Shipping Weight: 4 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0006JM09E
  • Item model number: 26169
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (408 customer reviews)
  • Amazon Best Sellers Rank: #1,722 in Pet Supplies (See Top 100 in Pet Supplies)

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Small, 2-Pack Verified Purchase
I have the above mentioned aquarium kit. I can confirm that this filter will work in the Mini Might filter that comes with it.

http://www.amazon.com/Aquarius-Aq15005-Rounded-5-Gallon-Aquarium/dp/B007KKU8QE/ref=pd_rhf_cr_p_t_4_MN0F

My fish is happy and the tank looks clean. Can't complain. :)
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By antmakka on December 26, 2011
Size: Small, 2-Pack Verified Purchase
My local pet store doesn't stock these so buying them online was the next best option. They seem to need replacing more than once per month but washing them under running water prolongs their usefulness. Remember to have plastic side facing the front.
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Size: Small, 2-Pack Verified Purchase
I bought this filter for my Tetra Waterfall Globe Aquarium (1.8 gallon) tank that I bought off of Amazon. It is both a perfect fit, and does a great job of keeping the water flowing through the filter. It also instantly cleaned up my tank from mucky to clear in minutes!

If you have any questions, or want the exact make of my tank and filter, just comment.
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Size: Small, 2-Pack Verified Purchase
It has been numerous years since I had my own aquarium with all the required accessories. Tetra has made some pretty outstanding products since that time and these filter bags do exactly what is required for small aquariums. As soon as I bought this filter with these carttridges, the water has been clear and clean ever since. These cartridges last about 30 days before needing replacement.
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Size: Small, 2-Pack Verified Purchase
this is a great deal. it's a great filter as well. the only thing is that you need to change it out at least once a month or the filter will fall apart and the white fibers will spill all over the tank. it freaked me out when i saw the white fibers. i thought it was a whole bunch of little white worms. then i realized, upon changing the filter and water, that the filter fell apart.
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Size: Large, 3-Pack Verified Purchase
It was a mild headache to find the right size filter cartridge. Tetra had released a new Medium and Large size from their previous release. I took a chance and this one fit my Tetra 10-30i filter. It works really well in trapping the excretions and more from my turtle. I leave it on for a few hours a day and the tank stays relatively clean. Though for the health of my turtle, I still change the water at least once a week.
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By Erica on December 12, 2012
Size: Medium, 3-Pack Verified Purchase
I love that it is so easy to change and to find the right size. Please dont be like me and forget to rinse the dust out- my fish were giving me evil eye for a whole week.
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Size: Small, 2-Pack Verified Purchase
If this is the right filter cartridge for your filter, it's going to be perfect for you-- if you tried to use it for the wrong filter, of course it isn't going to work! Don't blame the cartridge! This is the cartridge that goes with my filter and it works perfectly. Slip the old filter out after about four weeks (or sooner-- those things can get pretty gross!) and slip the new one into the two grooves in the inside of the filter, and voila!

The package recommends you rinse the filter before putting it in (and turn off the filter before you change the cartridges, just in case) to get rid of any leftover carbon dust. Do that, and your little aquarium is golden!
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