Hey Growmie, As seen in the photo at the top, yellowing/browning or burning seen at the tip is a clear sign of a high feed. This is ok as it lets the grower know that these are the limits of feeding at this time. I suggest you begin to dilute your feed strength down until you don’t see the ‘tip burn’. A little around the edges is ok, it’s a sign for you to slow down! Lol plants will take more than they need, until they can’t! Good luck Growmie! ❤️👊🇨🇦