Determining floor/joist weight capacity

[newreefer_59]

Just wanting to know if any of you consulted an engineer or other 'knowing' person in determining the floor and/or joist weight capacity that will support my tank. Given that my 148 gallon tank will weigh I guess between 1600-2000 pounds, I woud like it to remain on my main floor as opposed to in the basement....lol.

I have talked with the home builder as well as an engineering firm, but they all pass it off to someone who doesn't return phone calls. Any advise appreciated.