Found this an interesting read

[Myka]

Thanks for posting! I'm a carpenter so I know those basics, but it is a GREAT article to link people to that is in layman's terms that anyone can understand.

Originally Posted by Evilweevil

It was interesting , so I have to ask the question has anyone actually have an aquarium collapse a floor ? Or do damage that way?

I've twice seen people use support posts in a basement to support a main floor aquarium in which the posts cracked the basement floor. I've heard "millions" of horror stories, but seen very few pictures of real incidences. The thing is, most people don't have aquariums that are big enough to do significant damage.