I have a 36" hood that holds one 24" fluorescent bulb (20W). Could I screw in a HO (High Output) or a VHO (Very High Output) fluorescent bulb in that same hood? Or do I need another hood for that? In other words, is the hood that I have designed to hold only 20 Watts, or can it hold more Watts? This is a standard fluorescent hood that I got together with my 30G tank, and the bulb that came with it was 20W.