What's the pH of the soil? I know you mentioned the pH of the water but, the soil maybe out of whack. What kind of soil are you using? You can test the runoff pH or if you have a soil meter test it that way. If the pH is in good range I think she is hungry, remember you said you haven't been feeding her. Calmag is a MUST when using RO water. Also looks like a PK deff. Test soil pH and get back to us.