I no it's not that big too some, but a 100gal, as i worry if it cracks, as i've dreamt about me picking fish up off the floor and putting them back in the tank.
Right now I have a 132gal (500liter) and it works for me. I would love to have a tank of about 500gal, but no place to put it. That would be done as a salt-reef........if only
I think once tanks get too big, it takes away from there value slightly. With tanks less than 500L you can easily see alot of different fish. However as they get bigger, it will be harder to take in all of the tanks beauty.