Hi all! My NL plant is 5 weeks into flowering and just now showing signs of a nutrient deficiency. I am growing my baby in miracle grow soil and I was hoping that I would luck out and not have to add any nutes at all, but I think my luck has run out. The stems have purple veins running through them and other stems have turned completely purple. Also the lower leaves are starting to turn yellow giving the sign of low nitrogen levels. I have miracle grow 15-30-15 and I need to know how much to use per litre of water. Will my plant die if I don't add any nutes? The buds are looking sooo good with about 30% of the hairs already turning amber and I just don't want to mess this up. I would greatly appreciate advice from a veteran out there. Thanks guys and gals very much.