Blue - you are overfeeding your plants, your pH is all wrong for soil, and you probably have way too much light on those young plants. MJ is a very resilient plant, but you need to baby it when it is young - and giving it a lot of food and a lot of light isn't babying it.
It sounds like you have some good resources for growing; now ya need some good knowledge to go along with it. ...and that means doing some research and gaining at least some basic knowledge of what you are doing. Sorry if I sound harsh, but there are two other threads going right now that are dealing with similar problems with young plants. Do some research and reading!
Never argue with an idiot - they drag you down to their level then beat you with experience.
All of this is just pretend. But if I grew marijuana, it would be in strict compliance with California Law, SB420.
Live wild - it's too late to die young.
"Let the old men who make the wars, fight the wars."