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hard_hooker · 05-02-2008, 06:22 PM

It's been in there for ever. Tank is only 4 months old. I was told to just shake out the cartridge in some of the changed water and replace it. If I take out the charcoal will my biological filtration be destroyed?

05-02-2008, 06:22 PM	#3 (permalink)
hard_hooker Registered User Join Date: Feb 2008 Posts: 18	It's been in there for ever. Tank is only 4 months old. I was told to just shake out the cartridge in some of the changed water and replace it. If I take out the charcoal will my biological filtration be destroyed?