I do the same with hydrotron in fabric pots, I put a the airstones in the bottom, a piece of coir matting over the airstones then hydrotron.. works a treat!So.
Which section should I put my "airstones in coco" experiment?
I figure my Northern Lights' roots are far enough down in her 5 gallon bucket to reach the first airstone, So they got hooked to the airpump after giving her a heavy feeding to soak the stones.(Heavy as in a larger volume in total, same measurements of MC and Cal-Mag, and 1/4 dose of Silica per gallon)
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Should be interesting to see how it works.
To me, Anyway. I like to experiment.