It's really hard to get wrong. The salt kills most of the bad things and the capsaicin and garlic have potent anti-fungal properties which make it especially difficult to mess up. If you remember to turn your ferment once a day or so it'll go very well. (By turn I mean physically mixing the material at the top of the jar down into the depths of the jar and dredging up the stuff at the bottom for a while to sit at the top. This keeps "scum" from forming, but the scum won't kill you and can be safely scraped away without spoiling the batch if it does form.)
It does not. I the camera distorts the colors a bit, but when I made the reading, I had it at somewhere between 3-4. This was also confirmed by simply tasting the brine. It is very acidic.
