Set it vertical across the tank by the basking light -- take the screen place up to the UVB on the end of the tank butt the screen up to it place the basking light next to it--- or mount it inside w/ some of these things - 3 M velcro command fasteners --- fishing line --- long plastic zip ties -- picture hanging wire-- you want it 6-8 inches directly over the basking decorSo updated setup. 40 gal with Reptisun T8 20”. Reptisun 10.0 UVB, Hammock, got rid of the Walnut shell and used the rep carpet. IR gun, I also have 2 digital thermometers coming tomorrow.
Still trying to figure out a way to get the UVB off the net without taking the entire tank screen off.