Was ist das?

Hey 👋 Dein PH-wert in Kombination mit den Verfärbungen deiner Stängel deuten auf einen lock-out hin. Du musst definitiv den PH-wert senken. In deinem Fall z.B. PH - von BioBizz. Noch sieht es nicht kritisch aus, ich würde allerdings nicht all zu lange warten. Solltest dein Gieswasser zu hoch im PH-Wert sein, würde ich es durchgehen verwenden, und dein Wasser auf nominaöwerte justieren. Hoffe es hilft 👊🍀

I would never look bottom leaves for signs of any defficiencies. As a matter of fact I would ignore it as you might wanna defoliate either way. If tops are good, then your feeding is on point. Focus on that and always be on the schedule, considering also your source of water. Tap water can be hard and rich with calcium so it might be too much at some point, for instance.

I would say that it is an excess of cal-mag, as you can see in the diary... why do you give cal-mag every watering, it can literally kill your plant? You only give when you see that the plant is looking for it, ie before it starts looking for it. Also your ph is too high, reduce it to from 6.2 to 6.4-5, but at least to 6.8