How-To: Mineralized Soil Substrate, by Aaron Talbot - Page 60 - APC Library - Aquatic Plant Central

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Old 11-24-2020, 04:49 PM   #591 (permalink)
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Default Re: How-To: Mineralized Soil Substrate, by Aaron Talbot

It would probably be ok, but I'm not sure what would be gained if it's mixed in substrate.
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Old 11-24-2020, 07:14 PM   #592 (permalink)
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Default Re: How-To: Mineralized Soil Substrate, by Aaron Talbot

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Originally Posted by GadgetGirl View Post
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.

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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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