Black light bulbs do not really work well. Get yourself some actual black lights. Order online or pick up some from a place like Spencer Gifts in the mall or a local head shop if you’ve got those kind of stores around you. It doesn’t take a lot of black light to really work well. I am out of town right now and don’t know the watts on the ones I have currently but they’re not more than like 10-12 inches long and are shaped like standard fluorescent lights. Get a couple, set one up above you, beneath you. They’ll work great!