Automatic RQS. many plants

So a few weeks have gone by and could not quite manage to update.... the are growing superfast and i seem to be running after them! They start to show signs of flowering. Coco babys are looking good, soil ones took quite a heat/light stirke in week three and are now slowly recovering, but i don't think they will be the same. They are more advanced in flowering but i think it is due to stress. Total plants that survived amount to 52. It is hard to fill in with the details because there are so meny of them! Humidity is a bit high (after night it if 99% :( during day it goes down to roughly 60%... I'm working on that) i am starting to do foliar spray with Canna Boost and starting to give it through water too. For soil i switched from Terra Vega to Terra Flores. Amounts i have put in description are rough. PPM for soil is around 500 and for coco just raised it to 1100. Watering Coco twice a day with abundant runoff. Soil is watered when they seem to need it, although it seems it takes ages for it to dry and i thing i did something wrong in the mix (6 peat:3 perlite:1 vermiculite:2 cocco) By the time i realized it seemed a bit late for training and am doing a soft LST and moving branches around just so they can get a bit more light. ( I topped one and fimmed two a week ago, just to see what happens) A few of them have top leaves with yellow edges (see photos) and am tryng to understand what is going on. Tried for a few days to spray with calmag but no difference showed. Any ideas?? Ph of coco runoff is slightly lower than what i am giving (i give 6.1 and runoff is ranging between 5.5 and 5.8) and am wandering if this will lead to problems in the future. Again, any ideas?? I am not really sure for the soil ones which still have yellow leaves f at some point i need to cut them of. New growth is looking good :) . In the photos plants are much more yellow than in real life. The yellowest is one to which i did a flash out at the beginning of the heat strike becausr i thought yellow leaves were a nutrient lock out but it turned out it was not true and she did not like it. Slowly tryng to bring her back to balance. They all smell super citrussy, no matter the strain! I am kind of playing around and experimenting and welcome feedback and suggestions, willing to learn good as fast as i can! have a good one!