Thanks for the feedback and knowledge. I went to the store and picked up some Cal Mag Plus yesterday. I did not flush them. I just emptied the reservior and refilled with distilled water and then added the appropriate nutrient amounts along with the CalMag plus.

Questions:
1. Because of my nutrient issue, should I veg them longer?
2. My tallest is currently 6 inches tall (3wks old give or take a few days) and my box is 36'' tall, when would you experienced guys make the transition to 12/12? At 5wks, 6wks, or 7 wks?
3. Also, do you think this would be a good time to top them or should I wait? There at least 5 nodes. In some cases close to 6.
4. Would you recommend fimming them? Read about this on here, but I don't want to try something that is above my experience level.

The reason I ask is because I have read about the stretching once that transition is made and I don't want to have the "plant to big for the box" problem.