DoctorF

@Mrs_Larimar, raised the lights by 5 cm , and switched to 'bloom' only.

@DoctorF,its easy to see look at the fan leaves of the upper region they are slightly " like bleached"

@ Stick: I don't measure or correct the PH, because I have a bio setup. (Ph is auto corrected by BAC tabs ) @Mrs_Larimar : thanks for the advice of the light burn , can you explain this, what do you see that indicates this ? @ B4RNS : just this morning feeded her with 2ml bloom and 2ml of PK (and I have ordered a Cal/Mag bottle online to feed in 4 days if this didn't help) : thank you for the advice to all: thanks for the advice , I'll keep you posted on the results @DankGardener : thank you , I will put the lights slightly higher .

@OntarioBigGreen, a little overkill ... :-) normaly for a setup of 4 plants.