I agree with Grey_Wolf in that you're overfeeding them - the clawing and nute burn is coming from your grow nutes - they're getting far too much nitrogen at the moment!! If this were my grow, I'd simply get rid of the Bio-Grow altogether (it's got an NPK of 4-3-6) since everything else you're feeding has some nitrogen in it (heavens - even your calmag has 2.6% nitrogen!). I'd also go to a water/water/feed/water/water/feed type of schedule. Make certain you're getting good runoff when you water so you're helping to clear the salts out of her as you go along. Your damaged leaves won't recover but if you see continued, expanded problems, I'd do a complete flush ending with 1/2 strength nutes (minus the BioGrow).
Good luck!