What I don't kill....I guess I will smoke. I'm growing an autoflower in FFOF using RO water. First time grower so I'm fucking everything up. I was actually doing pretty good until I started getting these spots on the upper leaves during flowering. The bottom leaves are not exhibiting the same spots. I've been feeding primarily CalMag and Bloom nutrients the last few weeks while in flower. I've also been keeping PPM's per gallon of water around 550 so I don't burn them since I read that autoflowers are sensitive to nutes. I'm not sure if this is being caused by overfeeding them or a deficiency. From what I've read, it seems to be calcium necrosis. As of now, I will be happy to just get them over the finish line. Any insight would be appreciated.