Day 64: It seems to go well. I am still keeping an eye on the "hanging" leaves. I think they tend to hang a little more when light on, and less with light off but its hard to say if it is normal. It might be as @GrowingGrannie mentioned, they might be under watered, as there is not much run-off at the last couple of watering's, maybe 1l each time and I will give them a 30% run-off next time to be sure UPDATE: I have noticed some more brown spots on the right plant caused by Calcium Deficiency. I think I should up the PH a bit more, going for 6.5 this time. I will also increase my CalMag supplement by 50%, and do 30% run-off today Day 66: Thank you all for the kind answers 🙏 You all have different opinions, and it is hard to pinpoint the exact problem. I am almost certain that I got some heat/light stress as mentioned by @GrowingGrannie and @Chow_13. I have therefore raised the lamp and are keeping the dimmer very low, using about 140W in total. I am still investigating if there might be other problems to it. @m0use, thank you for your answer. I do not think they are thirsty, at least not any more, as I am already on the subject for the last couple of days. About PH, It was difficult to get a good picture of the PH solution, but it was light-green to green (6.5-7.0) on the picture (And that was run-off PH) and what I put in was adjusted slowly from yellow to light-green aka 6.0-6.5 (I wrote 6.25 but it was auto adjusted) @gottagrowsometime, thank you for the answer. I do not think it is a nitrogen toxicity. My leaves aren't that dark green, although they are a bit to the dark side but not like what I see on other pictures with that problem. I also think the curling is caused by light/heat stress as I just got a new lamp and are experimenting with it. But I will keep your suggestion in the back of my head! @Chow_13, thank you very much for your answer. I think you are spot on, however I am not sure it is the only problem... It might be as you say, nutrients are not absorbed correctly due to the light-stress, but I will not put all my money on that @Nugsery and @GrowingGrannie, a big thank you for your answers. The deficiencies might not be the same, but the cure is very similar. I cannot make up who is right, but I do have a plan. I will follow your recommendation @GrowingGrannie and @Nugsery, and do a flush, but with a ph 5.8 as both nutrients should be able to be absorbed in that level. I will then give her a light nutrient mix and adding PK, also 5.8 ph. This is almost the same solution for both deficiencies. I will then slowly get the ph back to 6.2 @ernesttwwg, thank you for your answer. I have known for some time I have some Interveinal chlorosis, but I do not know what is causing it. There is multiple deficiencies giving those symptoms. The tacoing of leaves, and leaf tips curling down I think is caused by the light, and I have therefor raised the light. I will keep investigating the symptoms you mention OBS: I will not edit my nutrient schema as this is only temporarily, next watering will be as described UPDATE: After flushing with 15L~ ph 5.8~ and a small feed with 5.8~ ph I still get about 6.5~ ph in my run-off water. I am going to do another flush tomorrow to see I can bring it down to around 6.0~ ph Day 67: I think I see small improvements on the leaves. The new heat/light level seem to have done something. I did that second flush and are still getting about 6.5 ph in run-off.... I think I will let her dry for now, monitoring what happens, and do another flush in a couple of days