Robertsanswered grow question 2 years ago Well looking at your diary. I think your ph is not right. Plant is struggling to absorb nutrients. I am not sure what your substrate has beside soil. Coco. Perlite. If coco is dominate in substrate you have a coco grow and ph 6.5 is way too high. 5.8 is needed. The substrate makes a huge difference on what and when plus how much.