New problem

i have no clue what could be the problem.

What kind of fert and nutes are you using? How much are you using? That would probably answer your question. take care

by nute you mean nutrition?

yes I mean nutrients/fertilizer.

That is almost like me taking a pic of a snowball and asking you to tell me qwhere I live.
kind of nutes and str
age of plant
flower or veg
PH level
air temp and rez temp

we need info to help

looks like wind burn from the pic, is it close to a fan?