Any one use Ionic Soil nutrients?

Snow602

Member
I am starting my first week of flower and 1 plant is starting to turn lime green with dark green while another has some leafs that have turned completely yellow, I am assuming the lime green if in need of nitrogen while the other plant I have not idea because most of the rest of the plant is all a good green color. Am I being too paranoid for a first time grower?
 
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