Thanks everyone, It is a pleasure to share this with you. My wife doesn't understand.
The blue lights are called moonlights and they are standard on any saltwater tank. You can buy them built in to the light fixutre, or you can buy them separately. Mine are built in, but the ones you buy separately are brighter and a little more purple and so are better, also because you can position them any way you please. They only draw 1 watt apiece but they cost about 40 bucks per.