Hello! My reptisun T5 HO terrarium hood came in today. It includes a 5.0 UVB hood. (I have a 20 gallon terrarium bc he is a juvenile and I plan to upgrade)The problem is that I have no idea how to set it up. My basking rock is 5 1/2 inches away from the hood, and in order to keep the temps at the right spot I don’t want to get a lower basking rock unless I absolutely have to. I have the thrive terrarium which has a hood that slides on and off. Am I able to just set the lighting hood on top of the mesh screen or will this be ineffective? I’ve had him for 2 weeks now and my kit came with a coil UVB which I know is bad for him, so I want to get this hood set up for him asap.