now that looks like a calmag defincincy, we have had alot of people thinking, cal deffiency and this is what I look for in a cal,mag defficinacy. how ever I see your adding cal mag to your nutes, but I also see your adding bloombastic, and a few other things that are for flowering not veg. I think your nutes might be locking out, due to the improper ph and too many addatives. save the bloom addatives for bloom, and when starting on the nutes start slow, at half or even 1/4 strength. eventully if you alow this to keep happening, the imunsystem of the plant will die then black will come in and fungus and desises will kill everything. I see you dont have any enzymes in your nuteints theri, you might want to look into Cannazyme for 9 bucks at BGH, I know it will help get thoughs roots back to par, but it still doesnt take care of the problem so look into the ph and cutting back on the nutes, also the soil you using is not a know soil by most of us or most growers. Soils have problems that can not be seen until your growing so picking a soil is some what important. But you have all the nice nutes no reson you have to stay with soil any way might want to look into coco or hydro, personaly I like coco its like soil and hydro.

another observation, but dosent realy look like it but worth mentioning is do you foiler feed in the day time, it can burn leaves simular to that, however not thinking what is going on here