Greetings. I live on the 8th Flr. of a 10-story apt. bldg. in Washington, DC. The bldg. was built probably in the mid-1970's. I am thinking of setting up a large aquarium (72" long x24" wide) that, once completed, can weigh up to 2,000 lbs. Question is how I can determine whether the floor will be strong enough to hold this weight. What specific questions can I ask the apt. mgr. regarding the structure of the flooring to make this determination? Thanks!