Have a nice day everyone.
I just got home and watered the plants.
Below I provide the photos of the nutes solution PPM ,Runoff PPM ,Runoff Ph , current temp and RH and the plants before watering
I also lowered the lights at about 100 cm which gives me a value of 12500 LUX ( do not have a ppdf meter yet unfortunately , hopes this helps somehow )
No ph down or up added. The nutes ph was about 7.1 , but the bucket had already nutes inside from the last time i watered . I only just added grow nutes to get to the ppm of 490. The runoff ppm is the 590.
I will give again some photos in an hour or so, to show if and how they have recovered after the watering.