On my bag of soil it says it's okay for containersImproper soil and excessive feeding would be my first guess
I didn't mix the soil with anything but wouldn't it be to late to do sodid you mix your soil with anything? I like 50/50 soil/vermiculite. Check my thread in auto section. Autos should grow very fast. Some faster than others.
Like 8 gal potI don't believe that you should transplant it. Autos like light, airy soil. Pour whatever you are going to mix with on top and mix it gently. Don't want to damage roots. What size pots are they in?
The water thing makes sense , I've been spraying them because the humidity is lowLooks fairly small as some have mentioned but it is looking pretty healthy to me.
I am not 100% sure if this is true or not but I was told not to spray the leaves directly with water as it could cause burn (magnification effect) and to water the soil only.
I'm interested and will continue to watch. Hopefully those that are more experienced will check it out and help you figure out the issues (if there are any).
update?Week 6