The Planted Tank Forum - View Single Post - activated carbon kill plants?
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post #9 of (permalink) Old 07-12-2013, 08:10 PM
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Originally Posted by CrypticLifeStyle View Post
Actually its the complete opposite, once its used up its use fullness after a few days to 6 days, it leaches what it has absorbed back into the tank. Detritus being the bigger problem.
Even if it did leach all the elements it initially absorbed, which it doesn't, it doesn't change the fact that it CAN act as biomedia. Anything in your filter will act as biomedia. Some even claim that with time it's a very good biomedia.

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