I have small mix. closet. 2 of my plants are having problems with yellow leaves, is it a nitrogen problem.? or PH? if its about nitrogen, how can I solve this with home made things? here are the pics.
can you get a pic with a normal light and of the whole plant? frmrboi is 100% right, but if you have it going on toward the top of the plant that is a classic nitrogen deff sign
but only 2 of 10 plants have this problem. and smaller leaves also started to turn yellow as you can on second picture.
if its about nitrogen what can I do?