Thanks for the replies. I think I am going to have to go with the PC lights. I do have a rather large glass center brace on the tank, so I don't think MH is a good option for me. Not to mention the fact that I won't have enough cash to buy two. If I take the glass canopy off and keep the wooden canopy do I have to worry about water hitting the bulbs? They would be about 4 inches from the water. The light fixture I have now did come with a thin sheet of plastic that attached to the underside of the housing, but I left it off since I had the glass hood.