Help, I think my girls are in trouble

[Rusty Trichome]

I agree with RT.

Although, I think he meant to say your PH is high, not low? Correct me if I'm wrong.

Yeah. Too used to putting my fingers on 'auto-pilot'. But I was pointing out that the potassium raises ph. (not usually a good thing, especially if overdone)
Adding lime would compound an alkaline condition.
Excessive potassium increases pH

Do not use hydroponic nutes in soil, unless the nutrients specifically say it's for the dual-use. Use the proper feeding schedule, regardless. Watch for redundancies. (an act or instance of needless repetition)