Ok so the UVB is the 5.0 bulb correct? Take the fixture place across the tank on one end width wise -- then take your screen and butt it up to the UVB fixture -- place the basking bulb next to the UVB fixture -- take a piece of basking decor placed directly below the UVB 6-8 inches -- watch his behavior the next couple of days --- when you upgrade the tank to a 40 + gallon you will need the 10.0 bulb for that and your distance will change along w/ placement depending on the screen --- keep us posted on him pleasehello the light arrived today can you help me? please