Not sure about packing the soil, aeration is good. Don't suffocate them, I made that mistake of over packing on transplant and two of four plants died. More roots means more foliage and a bigger harvest!
Also you should throw that soil out in the street and forget about it after this grow. Your plants need BALANCED nutrient ratios in their growing medium . Your plant looks ok, but it should be far better developed in the right substrate.