11-24-2020, 07:14 PM
Join Date: Nov 2020
| | Re: How-To: Mineralized Soil Substrate, by Aaron Talbot
Originally Posted by GadgetGirl
It would probably be ok, but I'm not sure what would be gained if it's mixed in substrate.
Clay mixed in the substrate promotes plant growth by increasing the cation exchange capacity (CEC) of the soil, helping roots to efficiently utilize soil nutrients.
Originally Posted by AaronT
There are a few other components to the mineralized soil recipe. Clay provides a source of iron. The clay also serves to bind with the soil as a flocculating agent. When plants are uprooted or disturbed, the added clay will help the soil to settle back to the bottom of the tank.
I'm still not sure about the sodium vs. calcium question, though.
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