The Planted Tank Forum - View Single Post - Is charcoal needed...
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post #1 of (permalink) Old 03-29-2010, 12:27 AM Thread Starter
kcrossley
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Is charcoal needed...

...in a planted tank filtration system?

I know the purpose of charcoal is to remove impurities, but what about fertilizers? Does it reduce fertilizer effectiveness as well?
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