I have read through the FAQs here and I think that I may have a K deficiency. Mg sounds possible but less likely.

I think this is what necrosis is, but there isn't really much yellowing. The necrotic leaves are slightly paler than the others though. So I have 2 out of 3 K deficiency symptoms. Here are photos to help my descriptions out. The middle finger has some spots near the tip. The second photo from the bottom of the leaf shows it more clearly.

We have been feeding with 5-30-5 bloom nutes from Home Depot. Now that I've done more reading I will be buying some better stuff more in the 1-3-2 area. Yesterday we flushed the plants because of the red stems and droopy leaf tips. I noticed the necrosis but only today looked under the leaf where it's much more clear that there is a problem.

Any thoughts? I think I will have things under control once I get them some better nutes. I will most likely be getting organic stuff since we were going to switch to organics soon anyway.
canuck grower Reviewed by canuck grower on . K deficient? Red stems, necrosis on leaves, but no yellowing I have read through the FAQs here and I think that I may have a K deficiency. Mg sounds possible but less likely. I think this is what necrosis is, but there isn't really much yellowing. The necrotic leaves are slightly paler than the others though. So I have 2 out of 3 K deficiency symptoms. Here are photos to help my descriptions out. The middle finger has some spots near the tip. The second photo from the bottom of the leaf shows it more clearly. We have been feeding with 5-30-5 bloom Rating: 5