Your light is too far away is one problem. That one looks healthy. They could just be dwarf indicas or something, but I'm guessing probably overwatering. You water too much and the roots don't go deep. You have a very large pot for that plant to be in. The roots probably are getting the water they need and not growing which means the plant won't get any taller. Also, about the food stakes, you're gonna wanna toss those for flowering. Read the guide in my sig for a little more info about feeding in flowering.
I think the pot is just too big for the plant. Also you should check your ph, it's not showing any normal ph lock out symptoms but it is stunted.
