Plans so far: Perpetual Harvest. Soil Grown. (LxWxH) Mother/Cloning Chamber: 3''' 6 Plants Fluorescent (18/6) Vegging Chamber: 3''X4' 3 Plants Fluorescent (18/6) Flowering Chamber: 4'X4'X7' 3 Plants HPS (12/12) Questions: How large an HPS bulb would work for this flowering chamber space ? I'd like to stick with fluoros for the veg chamber, to keep the electricity use and heat down. Would I benefit at all from a MH lamp, given the size of the chamber and number of plants I'm dealing with? I'm hoping to yield at least a half a week between harvests, think that's reasonable?