So I noticed my girls getting a few spots on a few of the middle and lower leaves. The spots are a rusty brownish color. After reading online I thought maybe I had mag deficiency. So went out and got some cal mag seemed to fix the problem for about a week but now it's getting worst. I tried to look around online for someone else with the problem before posting but couldn't find anything. I been checking for mites also and haven't found any. I'm about 3 weeks from harvest so not sure if I have time to fix the problem. But I would like to figure what's going on so It won't happen again. I know the pics ain't the best but only light source in my space is the grow light lol.