The Planted Tank Forum - View Single Post - Does Flourite increase tank GH?
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Old 11-21-2013, 06:46 AM   #5
Darkblade48
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Quote:
Originally Posted by Wannaberooted View Post
No, I believe it is inert. It has high cationic exchange capacity, that's it.
Quote:
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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