Also, to everyone, I would like your opinions. I live in an 4 plex on the second floor. a 97 year old lady lives below me. I currently have my tank in my garage ( which is on the first floor attached to my apartment ) because I am afraid to put the 45 gallon tank in the spare room for fear of accident. If there was an accident, it would ruin her apartment. My mother ( who lives over 1000 miles away) says its a very bad idea. What do you all think?
The weight of a tank is spread out over a large area. With 45 gallons, and taking into account the rocks/sand, you will likely have about 600pounds total weight. If you and 3 friends can stand in the area that the stand takes up, I'd say you'd be safe, as long as the tank is level. If you are adding any large rocks, make sure there is no way they could shift and fall against the sides of the tank (common way to get cracks). Some people silicone them together.
Whether the 4-plex's owner will have an issue...that's another thing.