its not very clear from pics , but what soil are you using ? stop with the calmag every watering , you probably dont need to use it at all ,if you keep your ph buffered your soil and nutes have already what your plant need , too much cal mag will lock other nutrients , if i was you i would give them a good flush with 1/4 Veg nutes not blooom with 6.3 PH water , start the bloom nutes 2 weeks after the switch for 12/12 . your plants need alot of N in the first 2 weeks after the switch for the stretch , its not clear by the photos , but your new growth look pale yellow , maybe too much calmag is locking other nuts.
