Tomorrow they will be 4 weeks old , been feeding with cal mag , coco sensi grow A,B , voodo juice and B52 , 1litre per plant/tap water

Some leafs are ”Clawing“ is that because I am using cal mag plus coco sensi grow A/B am I giving it too much nitrogen , also snapped the main stem whilst performing LST on the bottom left snapped but not completely only half way so luckily wrapped some tape around it see what happens , any suggestions would be appreciated , this is my first grow