justs put plates under the pots, and put directly on the shower floor. shower is white, right? your light should be about 2 1/2 feet away from the plants. if you have heat probs at that distance, raise the light. also, with hid's a nonstop fan is a must!

love, brooke

ps, don't worry about the foil as you have it covered up. no danger there, just extra insulation