I don't know what to do about the roots that are growing outside of the rockwool cubes. I'm tryin' to get a response from people, but there hasn't been any information or help for the questions I have. I'm going to go ahead and set up the four 60 watt CFLs I bought yesterday. I'm also about to put the rockwool cubes inside of the WaterFarm bucket, with no nutrients. The reason I'm doing this is because I don't have anything else to transplant the cubes into. Everyone wish me Good Luck!!