what does this look like? nute burn or deficiency

doesnt seem to be hurting it too bad but i would still like to kno what the problem is so it dont get worse

1) PICTURE OF PLANT *** VERY IMPORTANT ***
2) Growing indoor or outdoors
3) Watering schedule
4) Growing Medium
5) What stage of growth
the more info the better we can diagnose the problem

pH for sure.

how fast is the problem spreading?

Im sure they need a good feeding, before you do anything run some 0ppm water thru and test the runoff.

if it says anything over like 900, then probably flush, if it is under then feed.

nutes go in at say 1200ppm and idealy they will become suspended in the soil so mostily just h2o comes out, thus replenishing the food supply that has been depleated in the soil.

see what happens, they look green so that is a good sign