I have orded a DIY 2x55 compact florresent lighting kit from ahsupply.com. I'm going to be making my own hood but I was wondering, how high up in the hood should I put my lights? Also I assume that you need to cover them to protect them from the water, how is this normally done? I have seen a few glass covers and I was thinking about doing that, but all the ones I've seen are hinged, which I don't think would work too well underneith a hood and lights. Any suggestions?