This is my first year growing tomatoes, and I have chosen to plant them in containers as my deck is the sunniest spot I have. I don't think I planted the plants deep enough or added enough soil to the containers. I left about 2 inches or less from the top and planted the plants only to where the soil was in the starter containers, didn't plant them any deeper up the stock (after some reading, I believe I was supposed to bury them up to the first leaves, right?) So now, 6 weeks later, the plants seem to be doing fine, but the soil has compacted so much that there's a good 3 inches of space to the top of the container, roots are exposed at soil level, and it appears as though the bottom of the stock is trying to grow roots a couple of inches up from the bottom. Is it okay to add a couple of inches of soil to the containers now? If so, should I keep it away from the stock of the plant, or is it okay to bury it? Thanks!