Mixedup86, that is what happens when your root ball eats your air-stones. Even the pipe gets consumed. I cant remove the roots without bringing the hose, stones, and pipe up with it. Look at it real close and you can kinda see it all.
Use the rock wool with your seeds. When you have roots coming out of the cube, insert it into the baskets with the clay pebbles. Set your level so it touches the bottom of the basket for a week or two. Then drop it to an inch below the basket.