Yeah one pot per plant. What you see above the dirt is the same under the soil, just in roots. But i also think your going to need more light. They recommend 5,000 lumen's to veg and 2,700 to flower. They look great now but they will do much better w/ more lights. CFL'S are cheep and you can get Y splitters to put 4 bulbs under a U lamp. I use them and so do a lot of people on here. I have 2 and want to go with at least 8 with 26w cfl's that would be 56,000 lumen's. Check out the lighting section and good luck:thumbsup::rasta: