m0useanswered grow question 3 years ago Do you know what your EC is when you water?
Are you watering till runoff if your in hydro?
Looks like it needs some potassium, but hard to say if its a deficiency or a lockout.
I'd also monitor your PH going in and coming out as well as your EC, this will let you know if its under or over fed or maybe lockout.
Good Luck!