Good luck with the tank
Its an awesome size. However the single bright is absolute crap and at the most may
be able to support moss.
The dimension is close to ideal. I really would like it to have a bit more depth. I think then it would be easier to create a pseudo sense of scale.
The Marineland Single is going back. Not that I don't like the light. But, I just don't want anything sitting on top of the tank. That's the whole point of getting a rimless I guess. Keep objects at a minimal so what's inside the tank is not as obstructed. Basically, it just bugs me that there's wires and things hanging all over the tank.
Just put a desk light that I don't use at the moment to light up the aquarium as a test: