From what I can see you plants are doing well.. Are the stalks GREEN?
ANd is there a lot of NEW vigorous growth.. The first 2 weeks of flowering, there should be massive growth.. Both horizontal and vertical..
at least 1 inch a day...
can I see a wider picture..
The nutrients depends on how much you are diluting the fertilizer...
I don't see signs of over nutting.. Do you have any brown TIPS?
cheers
wider picure please...