02/24/25 - Short Facts: - Plant is looking horrible, quite many leaves have necrosis -- had to cut many off - VPD increased to 1.2, but I can only get it up to 1.1 --------------------------------------------------------------------------------- So, what is there to say? I haven't had as much time lately, so I haven’t been keeping a close eye on the plants in general—especially on the 1:Walt. But a few weeks ago, I noticed that something was wrong and concluded that it had to be a sulfur deficiency. So I bought Epsom salt, which contains both sulfur and a lot of magnesium. And here was my first mistake: I misdiagnosed the deficiency. My next mistake was using way too much Epsom salt—far more than I should have. That was a big mistake, which only made things worse. This is how the plant started to look like, but unfortunately, I caught it too late—like I said, I was quite busy. It was so obvious that something was going wrong. The leaves at the top of the plant looked worse and worse by the day. So I did some research and came to the following conclusions: - I misdiagnosed the problem. It was never a sulfur deficiency but actually a manganese deficiency. The small spots all over the leaves later became necrotic, eventually killing some of them. - By adding too much Epsom salt, I disrupted the balance between calcium and magnesium. This inhibited calcium uptake, leading to the symptoms of a calcium deficiency as well. I bought some "micronutrients" that do contain manganese and I watered it in and also sprayed the foliage. Right now, the plant looks so bad that I don’t know if she’ll be able to finish flowering or if I’ll have to do an emergency harvest. The next big problem is that I won’t be here for about ten days, starting on Wednesday next week. So yeah... not good.