Quote Originally Posted by stinkyattic
Good question, and I don't want to mislead you- I do not know if there is a difference that is dependent upon delivery method, but personally, I would actually hand-water soilless right AT 6.5, making sure my nutrient solution was correct. I'm not someone to ask on this one, since you can see in my grow log that I jsut royally fucked up a soilless (promix) crop by forgetting to check my EC and as a result never thought to add CalMag to it
I started off in promix and then transplanted into a 50/50 mix of promix and fox farms ocean forest.. followed by my latest transplant of going back into 100% promix.

I started off watering until my runoff read between 6.3-6.8 just like soil. My plants are doing fairly well considering and any problems had were due to my own doing. I can say that 6.3-6.8 has worked great for me, but at the same time I can't say for certain that I would've gained greater benefits fro a lower ph.