I like using the 22'' tube because it casts a beam as long as your dragon so they can bask evenly. Yes, the UVB can be off to the side next to the heat light. It should just be over on the basking side of the tank. I have mine set a bit forward to be out of the way of the basking light.
For hanging, you could try some wire (maybe picture wire or similar) and wrap that around the fixture hanging from the mesh on top or (even better) from a support sitting above the mesh that can easily hold the weight of the fixture. For basking light domes, I hang them from adjustable lamp stands so I can easily change the height to adjust temperatures.
For hanging, you could try some wire (maybe picture wire or similar) and wrap that around the fixture hanging from the mesh on top or (even better) from a support sitting above the mesh that can easily hold the weight of the fixture. For basking light domes, I hang them from adjustable lamp stands so I can easily change the height to adjust temperatures.
