I asked this because I was worried about evaporation messing with the light because if I get this light I won't run it with a hood...what should I doI do. I use the glass hood made for the aqueon. For a rimmed tank with hood, you can snap off the inner brackets and forego the screws of the lighting clamp. A lot of people don't realize that for some reason, even though there is a instruction saying you can. For a rimless, you can just use the clamp as is with the screws.