Either way.... Wasn't is Ziggy who learned the hard way about using foam under a tank? One of the Mods has a thread anyways, where they put foam under the tank, then got a call from their wife that the bottom had cracked.
From that video, you have to also realize that the 10g has very very thin glass... I'm thinking 1/8"... My 40 breeder and 150g are both sitting on only a rail. My 125 is just on a plywood top. I had over 300lbs of rock, 150lbs of sand, and whatever amount of water I had in my 150g and never had issue.
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry