N def? Or mag? Or ph?

I'm stuck as to why my fan leaves are turning yellow. Tried feeding with Dutch stuff no luck, didn't want to over feed? Or can it be ph? Or potbound?

Transplant time.... Pots look small

N lock . Check ph soil water run off and soil ph if it 6.3 it fine. are you using tap or Ro water ?

its a waste of time checking you ph run of. just lead you down bad roads and make you think you have problems when you dont. it never really accurate as so many things can effect youre ph from day to day week to week. also ph swings are natural. caused by roots sweating ect.
first thing i would do is transplant to bigger pots

ohmy said:

Transplant time.... Pots look small

Click to expand...

All of the above and throw in moisture stress. Next time make sure pot is larger at start of flowering.