"It doesn't matter because there is a huge colony of bacteria and fungi living in your soil, and you feed them, not your plant directly."

I take a minor issue with this. Even the worst fertilizers have plant-ready nitrates available, and the bacteria have nothing to do with those since it's already-processed into a form plants can use but bacteria cannot use. Almost every other nutrient is water-soluble, so that again isn't an issue.

The only reason you should ever have a microculture in hydro is if you are using a high urea or ammonia-based nitrate source, and if you are trying to harden plants against disease.

Also, speaking as R&D director, let me say organic is purely marketing. I've done it all from SEA-90 to Fox Farms Organic, and I've never noticed a difference in yield hydro-wise, from cannabis to tomatoes to mints to lettuces.
khyberkitsune Reviewed by khyberkitsune on . Watering pH in Organic Soil Based Systems ...doesn't matter. In fact, the guidelines of watering with a pH around 6.5 could actually harm your plants in certain circumstances. It doesn't matter because there is a huge colony of bacteria and fungi living in your soil, and you feed them, not your plant directly. They will use what you give them and the pH of the SOIL will ADJUST ITS SELF in a properly running system. Now, I'm not saying pH isn't important, because the pH of the SOIL is very important. It's just how you feed the Rating: 5