The Planted Tank Forum - View Single Post - Does Flourite increase tank GH?
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post #5 of (permalink) Old 11-21-2013, 06:46 AM
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Originally Posted by Wannaberooted View Post
No, I believe it is inert. It has high cationic exchange capacity, that's it.
Originally Posted by Subtletanks91 View Post
What does this mean haha.
Cation Exchange Capacity (CEC) is essentially the ability for a soil to hold onto cations (positively charged molecules). A higher CEC generally means that the the soil is more fertile, as it has cations that can be used by plants.


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