Thankds for the link to your thread, lots of good info . I see some of these canopies come just with dual MH but no vho/pc . Do I need to run VHO or PC bulbs with a MH or dual MH setuup ? Many of hte canopies I see out there come with a pair of bule actinic bulbs (either VHO or PC). I've always been looking at single mh with dual mh or pc canopies, but if i dont need them I could be looking at a dual mh swtup
