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Tetra

Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Unassembled BLUE Large

    • Based on 25,161 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Sonali's Shopping
Arrives May 12 – May 18
Order within 19 hours and 57 minutes
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Size: Large


Style: 12 Count - Original


Features

  • UNASSEMBLED REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear removes odors and discoloration
  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
  • FITS TETRA WHISPER WATER FILTERS Color coded to make it simple to remember which replacement cartridge size to purchase
  • CONVENIENT Easy to assemble and easy to replace
  • USAGE Change monthly or sooner if needed

Description

Tetra Whisper Bio-Bag Disposable Filter Cartridges keep aquarium water crystal clear and remove odors and discoloration The dense dual-sided mesh catches debris and fish waste Ultra-Activated carbon absorbs odors Use these replacement filter cartridges in your Tetra water filter – each package is color-coded to make it simple to remember which size to purchase These replacement filters are easy to assemble and easy to replace Clear water made simple Replace a clogged Bio-Bag filter cartridge when there is reduced water flow out of the filter For best results change your filter cartridge monthly or sooner if needed Size large Choose the medium size filter cartridge to fit the Tetra Whisper PF10 Power Filter 10i Internal Filter and Reptofilter 90 GPH and choose the large cartridge to fit the Tetra Whisper 20 30 40 and 60 Power Filters and 20i and 40i Internal Filters Since 1951 Tetra has developed the world’s most comprehensive body of fish food knowledge and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home Whether you're an experienced hobbyist or just starting out Tetra has everything you need – from a large variety of quality fish food and innovative equipment to test kits and decor.


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 5 x 9.25 x 8 inches; 14.4 Ounces


Manufacturer recommended age ‏ : ‎ 12 months and up


Item model number ‏ : ‎ 26164


Date First Available ‏ : ‎ June 24, 2004


Manufacturer ‏ : ‎ Tetra


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 12 – May 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Excellent value. Here are the dimensions:
Size: Large Style: 12 Count - Original
Size: Large 12 Pack First: People want to know what the actual size of these are so they can decide if they'll fit their filter. I got these to use with a Tetra Whisper 30-60 that I got at WalMart. They're exactly the right size for this filter (and certain others, of course). Measuring the bags or the frame over which you place the bags gives, of course different dimensions. But here's what I get measuring a brand new bag stretched over the frame at the very outside edges of the bag: The frame and bags are tapered so that they're narrower at the bottom and get wider towards the top. That allows them to be inserted into the filter more easily yet still fit in tight enough to make it hard for the water to short circuit around the bag. At the top, measuring to the very outermost reaches of an unused bag, I get a width of almost exactly 5". At the bottom, where it's narrower, measuring the very outermost edges of an unused bag, I get a little under 4 3/4". The height, again, measuring from the very bottom of the edge of the bag to the top of the frame (which sticks out above the top of the bag, of course), I get a height of just about exactly 7". Naturally, the bag's edges get smashed inward a bit, its edges curling up and mooshing in as you slide it down into the slot for it in the filter. So measuring a used, wet, bag will give you slightly smaller dimensions. It might actually be of more use to people to know the dimensions of the frame since that's what has to match and fit exactly into your filter, and you can measure your existing bag frame to see if it'll be the same. The frame I got with these "Large" bags is about 6 3/8" tall, 4 5/8" wide at the very top, and about 4 1/4" wide at the bottom. I'd compare those dimensions with the existing frame from one of your filter bag assemblies to decide if these "Large" bags will fit your particular filter. I cannot comment on the sizes of the medium or extra large bags. Again, the ones I got are the "Large" size. ------------------------------- Now for the review: Based on use with my Tetra Whisper 30-60, these work just the same as the pre-assembled units, but cost a lot less. Once assembled, they're exactly the same as what come with the filter. The amount of activated carbon supplied for each bag in these kits is the same as the amount that comes in the pre-assembled elements. I personally don't think it's enough, so I like to add more (about three times as much as what is supplied) when I make up or clean mine. That means obtaining similar granular activated carbon elsewhere, of course. ------------------------------- A bit of advice for people new to all of this: One thing that's important to keep in mind with any aquarium filter is that along with mechanical filtration (to get out obvious debris) and chemical filtration (the activated carbon), the main function of most aquarium filters is the biological filtration provided by the so-called "beneficial bacteria" which hopefully colonize your filter elements. The basic idea of this biofiltration is that two types of bacteria will eventually colonize the surfaces in your aquarium and especially your filter media. One type of bacteria "eats" the ammonia excreted by your fish, and, as their waste product, excrete nitrite. The second type of bacteria "eats" nitrite, and, as their waste product, excrete nitrate. Ammonia is highly toxic to fish even at fairly low concentrations (depending on pH to a great degree). Nitrite is also quite toxic to fish. Nitrate (the end result of all of this bacterial action) can be harmful to fish at high enough concentrations, but is not nearly as bad as the ammonia (produced by the fish) and the nitrite (produced by the first type of bacteria mentioned). So once your aquarium and filter system have established colonies of beneficial bacteria large enough to metabolize the amount of ammonia produced by your fish, the main things that harm fish in a closed system (like an aquarium) will be kept in control. However, the nitrates will still build up over time, and this is why we need to do periodic water changes on our aquariums. People do water changes every week or two, generally. But without sufficient bacterial colonies, the ammonia produced by the fish would kill them in very short order. You'd need to do almost constant water changes to keep the fish healthy. So the main point I want to make is this: If you remove and replace, or clean too thoroughly, your filter media, then you will be discarding much of your beneficial bacteria. This can kill your fish. To learn more about this, read up about the "Nitrogen Cycle" for an aquarium. So with a filter like the Whisper 30-60 that has two identical sets of filter elements, I prefer to avoid replacing the filter bags until they're absolutely falling apart. Instead, I rinse them out in used aquarium water and replace the activated carbon when doing a water change. This preserves the bacteria colonies in them and avoids shocking the tank by removing too much of its beneficial bacteria all at once, destroying the balance. Remember: You need to have enough bacteria present to handle the amount of ammonia produced by your fish (and rotting food from overfeeding), etc. Over time, the bacteria colonies grow to match the amount of ammonia being produce by your fish and your excess feeding. But there isn't a lot of excess bacteria because if there were, some of them would starve off due to a lack of ammonia. So the bacteria tends to stay in balance with your fish "load". If you suddenly remove a large percentage of the bacteria present in the tank and filter(s), then, until the bacteria can reproduce and the colonies grow back, there will likely be an excess of ammonia, and this can kill or injure your fish quite rapidly. So you want to protect your bacteria so it can protect your fish. I never do much of anything to the open-cell foam elements. They're meant to house a lot of beneficial bacteria, and cleaning them off will just remove that needed bacterial slime (biofilm). You don't want them to plug off, of course, but if you've maintained the bag filters ahead of them, then nothing should reach these foam elements to clog them up, anyhow. If they do plug, though, then I recommend rinsing them gently in used aquarium water, and not trying to get them too clean. Remember: You WANT that slime of biofilm to remain since that's your necessary bacteria colonies! The thin slime layer is good. :) When I do need to actually replace one of the filter bags, I only do one side of the filter at a time, waiting a month or more before replacing the other side. That way, hopefully the first bag that was replaced will have built up enough of a bacteria colony to handle a lot of the load before I dispose of the other one. Some of these filters are smaller and only have one bag and one foam element. In that case, you want to be especially careful not to clean the foam element if possible. And ideally, don't replace the filter bag any more often than you have to. Again, just rinse it out in used aquarium water to restore good flow, and replace the activated carbon when you're doing a cleaning. When you DO have to replace the filter bag (they last about a year for me) you may want to rinse what's left of the old bag, and then put it into your filter right behind the fresh new one. Then leave it in there for a month or so to provide its bacterial help while the new bag gets seeded from it (the old one), and finally establishes its own new colonies of bacteria. I like to have several filters in each tank. That provides a "backup" location for bacterial colonies to help handle the load when you do have to clean or replace a filter or have a failure of some type. There are some great on-line forums for fish keeping where you can ask questions and learn more about all of this. ... show more
Reviewed in the United States on February 12, 2016 by J-Sigmo
    • A Little Trouble May Be Worth The Price
Size: Large Style: 12 Count - Original
The best thing about this product is likely the quantity you receive for the price. However, I did have some trouble with the product. When pouring the carbon in the filter, some spilled out if the filter was pulled all the way up on the plastic part. It is easier to pour when it isn't pulled all the way up, but then some carbon gets stuck under the plastic part making it annoying to pull up afterwards to clip on. In one of my plastic frames, the small plastic clip that holds the folding part down broke, making the filter not hold onto the plastic frame properly. Overall, the main issues aren't huge problems, especially since the product is cheap. ... show more
Reviewed in the United States on July 18, 2023 by Daniel Acevedo
    • A must buy
Size: Medium Style: 12 Count - Original
I love using these for my fish tanks. They are super easy to assemble.
Reviewed in the United States on August 20, 2023 by Clarissa
    • A little tricky. Read steps if you have not done it before.
Size: Medium Style: 8 Count - Stay Clean
If you use these filters, this is the way to go to save some money. I had no idea this was an option. I only use this brand. Have not tried any others. These do seem to go out of stock on Amazon. So keep trying ;) The pre-assembled "seem to" have more of the coal pellets. And as stated read the proper steps to assemble\prep ;) ... show more
Reviewed in the United States on July 22, 2023 by Cor Ver Amo
    • Cheap and Efficient
Size: Large Style: 12 Count - Original
If you're buying these, it's probably because you can't find anything cheaper. The good news is these filters do what they're supposed to do. I use these filters on a 29 gallon tank containing three axolotls, and it does a great job of keeping the tank balanced and filtering out the waste. When the filter gets clogged (monthly), I toss out the old one and install a new one. It doesn't get any simpler than this. ... show more
Reviewed in the United States on July 11, 2023 by DCLXVI
    • They work
Size: Large Style: 12 Count - Original
This is the only place I go to buy these.
Reviewed in the United States on August 16, 2023 by Stanley Meier
    • Reusable !
Size: Medium Style: 12 Count - Original
The good thing about these is that you can re-use them 2 or 3 times before tossing them. I use the water hose on jet, takes about 10 seconds!
Reviewed in the United States on August 1, 2023 by william scialdone
    • Does the job
Size: Medium Style: 6 Count - Original
Good product for the money I paid. I use this in tank for my axolotl. Have used this brand for almost 2 years without a hitch.
Reviewed in the United States on August 2, 2023 by Elizabeth Engel

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