Jorge Cervantes FAQ:

Quote Originally Posted by Jorge Cervantes
The easiest way to stabilize soil pH is to mix in one cup of fine dolomite lime per cubic foot of potting soil. Mix dolomite lime thoroughly into dry soil. Remix the soil in the container after it has been watered.
A couple other places on the web suggested the same ratio, or 1 oz. to every gallon of soil.

I hope this isn't what's locking out other elements.

I just fed with just h2o today, adjusted to approx. 6.3 - 6.4, runoff was the picture above. I plan of feeding with just water every 3rd feeding like justaseed, I'm modeling a lot of my grow on his Lovely Ladies thread/log.