Finally got a pH testing kit, pH UP and pH DOWN, and a TDS meter. Plants had been showing signs of calcium deficiency. Initially the person at the local hydro store told me that the water was hard enough where I am that I probably wouldn't need to supplement calcium so I didn't worry about it.
Bowed to the reality that I could not control the humidity in the environment letting the tent exhaust back into the room, added a window vent.
I am going to start flushing the stunted middle plant in prep to early harvest.
@Growingkitten, Yeah I like the light a lot. BUT, take that with a grain of salt, this is my first grow and I don't really have any experience with different types or sizes of lights. I'm going to get a spider farmer 4000 for my next grow (going to upsize) and see how that does.