Welcome to another week of Hydro 101, where indoor growing newbie’s can get a handle on the art of growing that we love so much. Something all beginner growers need to get a handle on is transplanting. If you’re growing in soil, which is the best medium for rookies to cut their teeth, you’re going to need to move your plants from one container to the next as they get bigger. You want to give your crop the chance to thrive, and avoid having them get rootbound.