Thank you SO much for making the diary! The answer is pretty simple and it's two-part - First and foremost, your PH is too high! You need to get that down to 6.0-6.8!! Second, you're giving your ladies too much nitrogen (the NPK of Bio-Grow is 4-3-6 and it's that 4 that's the problem!! Especially when combined with the Bio Bloom which has an NPK of 2-7-4) and it's causing a lock out of the calcium they need! Cut your grow nutes in half if not more. Adding the calmag should help (if the PH is corrected) but only give this once a week or you might end up with a calcium toxicity.
The damaged leaves will not recover, so don't expect it...
Good luck!