The green mean machine - Hulkberry auto

Decided to call her Maria. Just in the hope that she turns into Maria Maravilha, going in the direction of a she-hulk, but amazing instead of incredible. She seems to be a bit weak at the moment, but now on day 6 doing some progress, I guess planting directly in the medium did not help and next time I will definitely use a coco+peat pellet as that has some nutrients in, instead of a completely inert medium as coco. I am also trying to get used to the right distance and setting of the lights (they are currently drawing 35 W out of 150 W, although I had it drawing about 25W for the first 3 days and at 45cm and then 30 W from day 3 to 5 at about 35cm). I guess I did not get the distance right as she is stretching quite a bit, or maybe its just the sativa kicking in. I think she has some problem, as she is in her most fragile state at the moment, her leaves are too yellow, specially around the veins (did not find a diagnostic for the way she looks, (see day 5, although in real life its yellower) anyone has ideas?), but I am staying positive that as she grows bigger and forms more roots, that this will go away. I'm just hoping I am not stunting her already. I also made a feeding schedule with target EC values and Coco A and B ratios for the development. Of course that this chart is just a guideline, and the plant will be more important than the schedule if I see something is off. For those wondering Coco A is N+CalMag and CocoB is PK, hence the different ratios throughout. As coco needs a bit more of CalMag, during the times where I will be using more CocoB, I might add once or twice per week an additional CalMag supplement into the mix. The plateau starting around 18.04 can be extended depending on the stage of Maria (that should be full blooming phase). At the beginning its quite tricky to follow the chart as the ratios are quite low and Maria is still not getting full watering, so I pre-mix several days ahead and water down to right EC, however the ratio is slightly adjusted.