The problem I ran into was moving the big plant around in order to change out the bucket. Since they are so tall I had to be very careful not to hit the light fixture on the ceiling. I damaged one of my first plants moving it into a fresh bucket and that made me gun shy to move them once they got very big. Now I know better, kinda, and have learned to clip them a bit more to keep them more manageable in my DWC setup. Makes complete bucket change outs much much easier and thus I've virtually eliminated any root issues so far.