I think I've been harvesting this:
It's not easy to find all the guaranteed analysis labels for AN nutes and they have many versions of "Grow" so I can't calculate your nutes without pics of the guaranteed analysis labels on the back.
I'd be guessing if I told you that you have this or that issue, but burned tips and edges can be a P, K, or S toxicity. If I knew what you were actually feeding them in gallon I could give you a much better idea.
If you don't want to post them here you can PM me the pics and I'll run the analysis base on these amounts/gallon on Monday:
Rhino skin 2 ml
Micro 12 ml
Grow 12/ml
Bloom 12 ml
Bud Candy 6 ml
Big Bud 6 ml
I hope the weather holds!