Light is currently 29in away from tallest plant (600w LED), and I'm using elite garden. I figured this could be something from the nutrients as well because I used them on the younger plants without thinking about it. Not a very high dosage of nutes but I've heard you're not supposed to add any...
thanks so much for the info! those spots are still there, although no more of them started to appear so I assume you are correct about that. This is my first time growing anything as well.
I do however have another plant (the same strain as the one pictured before) although this one is starting...