Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Unassembled Medium (Pack of 12)
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Grandmadank
> 3 dayMuch cheaper than the premade bags and really not very difficult to assemble.
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T. SORENSEN
> 3 dayI have a planted tank... these work great... I change them every two weeks opposite of water changes.
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steve
> 3 dayafter first use, it starts to fall apart . after second use i throw it away . not worth it ! with a brand name like this,i thought they could last longerr.
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Rachel
> 3 dayExactly as expected.
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RS.
> 3 daygood product. will buy again.
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tigerfire2002
> 3 dayI use these in a 29 gallon tank and they work great. i never have a problem with my water being dirty. One of the really nice things about these filters are that you can add a different kind of Carbon if you need to. My ammonia levels started to rise (my fault not the filters) so i was able to put in the ammonia removing carbon instead of the regular stuff without a hassle
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Millie
> 3 dayGreat product for the price.
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RM
> 3 dayWorks
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Nathanial Lindgren MD
> 3 dayworks well
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Kaalijaae
> 3 dayIm a beginner with all this fish stuff and I was a little hesistant to buy these seeing that you had to put them together but I figured why not for the price. They are a fraction of the price than the already assembled ones and theres more than triple the amount. Anyway, needless to say these were incredibly easy to put together practically self explanatory. 10/10 will be buying again!