No problemo my friend, I was in the same boat you are in at one point. This forum and lots and lots of reading is what helped me.This forum has been so helpful to me i really appreciate the info.
Seems like I had answered another one of your questions before and you are in soil? Is that correct? I'm pretty baked right now. When to add nutes depends on if you are in soil or hydro and how long have they been vegging for. Plants with a N deficiency will look yellow and almost like they are dying.I'm new to nutes, when should i start using them? Like how can i tell my plants have a nitro deficiency or whatever?