Ok, so I'm buying a standard 120 gal tank and my condo is on the 3rd floor. I currently have a 72 bow with about ~120 lbs LR and a DSB as well as a 20 gal sump. It is located on an internal wall(not sure if it is loadbearing or not). When I ripped out the carpet to install pergo floors I saw that the sub-floor is a concrete slab. What is the best way to go about finding out if the 120 gal will be a problem as far as structural integrity goes? Unlike my 72, it will be located half way down the wall shared between my condo and my next door neighbor. I am going to call the building inspector for my town, but I'm not sure what he'll be able to tell me. Anyone have any thoughts or suggestions?