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Re: Filter Media?

Dear "Couch",

I run a canister filter also and in it I have some biological media (clay and 
rock products by Eheim that culture bacteria) and some mechanical filter 
pieces...i.e. filter wool.  I have read in too many places that using carbon 
will take out the additives/trace elements that you are working so hard to 
put in.  The plants are such a good filter themselves that people such as 
George Booth say that carbon is not needed.