dmurray407 Posted October 25, 2021 Share Posted October 25, 2021 I have 2 Fluval Canister filters-a 307 (for my 60 gal tank) and a 107 (for my 10 gallon tank) I've read a few posts where people say that they use "alternative" filter medias like polyfil and sponges in their filters and they say it is cheaper and more efficient than the brand name stuff. Can anyone tell me more about what they use instead of brand name media? Which things can be safely replaced with "cheap stuff" and which things should not be switched? The 307 isn't that bad, but the 107 has some different pads and things I'm not sure I need at all. The 107 came with 3 different types of "bio foam". See the photo for the available options. Link to comment Share on other sites More sharing options...
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