Mychoriz Fungai. Ohso Or Subcoool has a thread on it. Blue mountain organics from ebay has it in their Super plant tonic which is a root stimulater/developer. The fungai are little bacteria that aid the roots by breaking down nutes so they can be more easily absorbed. You can also get it in Oregonisn sold by Aqua serene. Hope this helps.
Peace and Bud.

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Plants have you see my eyes.....