I was reading a link from the DIY forum and it stated to have between 2-4 watts per gallon. Is this right? All the aquarium lights ive seen are only 40 W. I have a 55 gallon with the black plastic lids with the small area of plexi glass. My light is a 48" and only houses 1 bulb. What would you guys suggest? I have no live plants. Also thought I read that you can use the regular bath and Kitchen bulbs for aquariums? They dont get too hot? Thanks for any help and suggestions. I appreciate it