Help keep your aquarium crystal clear with Tetra's Bio-Bag Filter Cartridges. These disposable filter cartridges are easy to use and work to keep your fish tank in tip-top condition. The ultra-activated carbon is designed to absorb discoloration, contaminants and foul odors while the dense, double-sided mesh works to trap debris and fish waste. These Bio-Bags are designed to fit Tetra's Whisper 20i and PF10 Power Filters. Best of all, the three-stage filter cartridges are easy to assemble!
Convenient, easy-to-use, three-stage filtration cartridges are designed to keep your aquarium crystal clear.
Ultra-activated carbon works to absorb discoloration, contaminants and odors, keeping your fish tank in tip-top condition.
Double-sided mesh is dense to trap fish waste and debris.
Disposable Bio-Bags are available in an 8-count and 12-count option.
Compatible with Tetra Whisper 20i and PF10 Power Filters.
Changing the Bio-Bag®: When water flows excessively from the Wonder Tube Chamber into the aquarium, it is time to change the Bio-Bag®. The Bio-Bag® should be changed once per month to prevent backflow and avoid filtration problems resulting from a clogged Bio-Bag®.
Remove Bio-Bag® from filter, allowing excess water to drain into filter box.
Remove clip from frame, fold up frame flap, and remove floss bag from frame. Place new floss bag over frame.
Add one packet of Ultra-activated® carbon.
Fold flaps of Aerobic Frame® over filter bag and replace clip.
Rinse Bio-Bag®, insert into filter, replace filter cover.
I purchased these because the ones that were already assembled were a couple of $$ more expensive. I figured I could save the money and assemble myself. It is a bit messy when putting together, but the cleanup is very straightforward. I usually put the charcoal in the bio bags over the sink and then rinse the sink afterwards to help with clean up. I have been using these bags for years and they work really well.
One day I will come up with a method that isn't as messy when assembling, but it really doesn't bother me. It filters the water and cleans up turtle poop. I am happy, it does the job.
Quality with fast delivery
on Jun 17, 2021
Item came quickly as promised and is high quality. As a repeat item that is needed, I appreciate the consistency
on Jun 25, 2021
Great multipurpose filter for the price. I've used these for 10 years at least.
on Jun 19, 2021
Somewhat different to another brand, however these charcoal filters are wonderful.
on Mar 11, 2021
These filters are so easy to put together & install. I don't know why I never thought to use these before. Thanks a bunch!
Not bad but doesn’t hold to the directions
on Apr 19, 2021
The package says good for a month but when I’ve checked it it only last like a week.
gets the job done!
on Apr 22, 2021
These filters are great for my 30 gallon tank. Easy to use and work just fine.
Easy to Use
on Jan 27, 2021
I bought these because the pre-made Filter Cartridges were out of stock. Well, I'm hooked on these now. Very easy to put together and work quite well for my turtle family set-up.
Good as last resort
on Jan 12, 2021
I prefer using the assembled bio bags. Since the assembled bags were out of stock I had no choice but to purchase this. They work well but it's a hassle putting the charcoal into the bag without spilling it.
on Dec 13, 2020
This Tetra filter has been running for several years. Replacement motors are available and easily installed. The Bio-Bag only takes a couple of minutes to assemble, compared with 1 1/2 hours to drive to the store. Changing the bio-bag gives a noticeable improvement in water clarity.