ive recently read that miracle grow soil is bad. ive been using miracle grow premium potting mix (0.14-0.14-0.14) for 30 babies and i havent had any problems so far. Im about to transplant 2 of them to bigger pots (the rest are going outside) and im debating if i should fill these pots with this soil or not. if not what type of soil should i get? help?