The first thing I would do is get the tank off the floor- its going to be cold down there and the dragon likes to see whats going on ---- the floor is not a good place for him/ her- the next thing the UVB needs to be a Reptisun 10.0 tube T 5 - w/ a fixture that has a reflector- and NO cover over the bulb- it should be 12-15 inches from the basking decor- you need a good bright white basking bulb that keeps basking temps 105-110 for a baby and 95-110 for a juvie /adult dragon -- NO loose substrate dragons lick everything so I would suggest slated ceramic tile or NON adhesive shelf liner both are cheap and can be purchased at your local home improvement store - the tile would need to be cut by a tile cutter so you dont get jagged edges - also do not grout or seal the tile cut the tile to the size of the tank lay them in there so you can pull them for cleaning -- others on here can also give you ideas of how to set this up as well - your going to need 2 digital probe thermometers and I also would invest in a infrared heat gun - the probes can be bought at petco or petsmart for $5 - the heat gun from your local home improvement store for $10-12 - how tall is the tank ?
Karrie