leaves still yellow after nitrogen. feeding.

There are a couple fan leaves tht are slightly yellow....its been this way after 5 days of givin it a shot of nitrogen. ...i cant figute out this issue ..need help!!

What sort of N did you feed? It could be that you locked out certain macro nutes due to a incorrect ph balance. Could you list off your environmental conditions?(temp/humidity etc) another thing i need to know is if you are using a chemical or organic grow method.

Ffof soil
Temp:77-80
Humidity- 30-50
Flora series nutrients
Ph meter always read 6.4-6.8

If it is the ph ...how can i fix this problem? ....plant seems to b growing. Ok 7 1/2 week veg og kush grow with preflowers almost looks like its in bloom

As I understand it, the dammage is done. You've corrected the problem, but you can't fix the yellow leaves.

Plus my watering and ph have been the same from seed til now....didnt start useing nutes till bout a month...but i ll see wht happens from here...thanx for ur input bro.