Contrary to some beliefs, dragons do not need water dishes or
bath dishes in their enclosures, they get
hydration from the bugs and veggies they eat. The only time you need to
bathe them is, when they soil themselves.
As for lighting, those coil type screw in UVB bulbs can cause eye irritation, eye infections and/ or blindness. I always recommend the Reptisun 10.0 T5 HO or the Arcadia 12%D3 linear tube type. These cost more but, are well worth the investment.
You spikey little buddy is growing fast and, that viv will be way to small in a very short time. An adult dragon needs at the very least a 40 gallon breeder (still cramped but livable)and a better choice wood be a 4x2x2 or bigger. Here's an example: