The Planted Tank Forum - View Single Post - activated carbon kill plants?
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Old 06-29-2009, 10:23 AM   #2
Darkblade48
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Why are you cross posting the same post in different parts of Planted Tank?

To answer your question, no, activated carbon will not directly kill your plants. It can adsorb DOCs, including chelated iron. In essence, it can sequester some nutrients from plants, but will not be directly responsible for their death.
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