Does anyone know where you can go to get your aquarium drilled out? I know glass doesn't take to being cut too well, but there's got to be a way to do it. Otherwise, how would there be glass tanks that are pre-drilled?
I think you have to be careful of the type of glass... on my 46g that I bought a few months back, it had labels that said "Tempered Glass, do not drill." Have you thought about getting an 'over the top' overflow?
No, I haven't. I don't want to go that route, because I want it to look nice and sleek, no wires etc. running off the top. I need two holes, too. One for the overflow, one for the return, and I want the return to run to a waterfall. (Paludarium).