No water in this 40b (shown with pictures)
I can fill it up, but the tank is on the floor and a pain to drain.
I have it on my other 40b that is up and running, so I can post pictures later. (be warned-it's a failing planted tank...so be nice. lol)
and this is the standard 40b set up. purchased the tank from petco.
You are correct, the fixture itself is like 35 inches, but the legs can extend at least 2 inches each. so it wasn't an issue getting it on the tank.
but the legs themselves attach perfectly to the rim of the tank.