You should probably tell your friend to ease up on the damned Grow nute for a minute. Haha. No, but for real, it isn;t burning, and it's not deep, dark green, like mine is. So don't sweat it. I purposefully push mine, though, to see where the threshold is for feeding so I can push it when I need to. I wouldn't recommend it, though, until you are comfortable with everything else. Like, just keep your plant healthy.