I've got a problem with mi SS. Two days ago, I noticed some decoloratión on the leaves, the worst ones are the ones arround the buds. 10 day ago, I checked the soil PH, it was about 5. I added 3 coffee spoons of sodium bicarbonate to 7.5 liters of water, and I water my plant with it until yesterday. But the PH didn't change, still arround 5 or even lower. I think I was also over fertilizing. So yesterday, I flushed the soil with 5 liters of water, and then rewater it with 1/4 of the nutes I was using. I also added some crushed eggs shells to help with calcium and raising PH.