The plant is Durban Poison. I’m on day 24 of flower. Plants are in 10 Gal pots. Plants are in 2/3 Fox farm, 1/3 compost and I’m using Dr. Earth 3-9-4. I don’t ph my water (ph around 7.4 out of tap) and I don’t water till runoff so I can’t give any info on either. This plant and the other one in the grow have been perfect until now. The other plant is a Purple Haze and has no issues. I noticed the sports on the leaves yesterday and it has gotten worse. It’s at varying levels on the plant so I know it’s mobile. I’m guessing cal mag, but if it is that I don’t want to use bottled cal mag on an organic grow. Any help is appreciated.