The Planted Tank Forum - View Single Post - activated carbon kill plants?
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Old 07-12-2013, 01:49 PM   #8
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What is feeding your filter if you have 0 nitrates :-/
Originally Posted by Florida_Larry View Post

and when left in for long periods, serve as a BioMedia in your filter
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.
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