I don't know what a versa top is. But.....I took my glass top off a year or so ago because I wanted the better gas exchange and, as someone else mentioned, it was something else to clean. I still wanted my lights protected from splashing so I built three-sides of a ( l___l ) rectangle out of 2"x4''s and stained it to match my stand. That keeps my lights about 5" above the water level. The lights cover pretty much all of the tank top so, except for the open back, I don't have to worry about "stuff" in the water that I don't want there.
Jim