Just had a fungus gnat issue so neem oil is in the soil. Not sure if that will effect this. i've been using foxfarm growbig with alternating doses of big bloom. The veg nute is 6-4-4 and the big bloom is 0.01-0.3-0.7. Since the start Ive been keeping track of what goes into the soil. Of course I cant be sure what had already been consumed and in what proportions. The soil ph is fine unless neem oil would effect it in that way, im unaware. Dolomite lime is present. My ratio turns out to be something like this 30-16-22. All plants have been receiving the same nutes but only one plant is showing discoloration, red blade edges, and some yellowing tips. I have the flowering nutes with 2-8-4 so I can easily remedy this if it is a phosphorus def. I want to make sure that this is exactly what is happening. Again, this plant is alone on this one. Is my ratio okay or should I up the phosphorus?