hi there, I found some yellow on the extremities of the newly grown leaves (tips)? is this light burn or some nutrient excess?
I also found them more flexible than usual
thanx
Your lamp to plant distance is fine. Therefore I'm guessing it's a slight over feeding. Reduce your nutrients slightly, no need to flush its not that bad. Make sure you are not over watering and ph is all good as these can also cause certain nutes to lock out.