"Steve" wrote in message
> I've been told that I'm worrying for nothing, but just asking if a 75
> tank is too much for an apartment floor. It's a highrise built in 1969
> concrete floors.
> Any input would be appreciated.
The water will weigh as much as four 160 lb people, and the effect is
similar to five people (includes tank glass, rocks, gravel etc) standing
close together posing for a photo. Around 60-70g is where I start paying
more attention to the floor (ie: keep perpendicular to joists, close to
structural walls etc) but that's mostly to minimize tank bounce during
parties. I don't think this would pose any risk to a concrete floor,
however there might be insurance or apartment regulations which limit the
allowed size of the aquarium.