Rockster,
The approx. weight of a full (just water) of a 175gallon tank is 2100lbs.. Add rock, stand, canopy, filters, etc...
Name me one piece of furniture or appliance that ways more then that? A water bed is heavy but is actually less per square foot than a frige is. That is the key to weight, spread it out.
Not arguing or even trying to make you mad.. Just pointing out that it would be the heaviest thing in the appt.
NYWATERS,
I would not chance it but , It is up to you.
Wamp