
Warborg;3554869; said:Without details I would not go past a 55 gallon as that could weigh up to and go over 500lbs.
An easy 'tape measure' is to find some big friends (over 200lbs each). Put 2 or 3 of them together where you want the tank (make them sign a disclosure that they won't sue).
Seriously, a 500lbs tank would put continued pressure vs a 2 minute get together. so it's not a true and tested method.

An easy 'tape measure' is to find some big friends (over 200lbs each). Put 2 or 3 of them together where you want the tank (make them sign a disclosure that they won't sue).