Wow, that's some thick glass! Someone went way overboard when they built that tank. I don't know enough about that stuff to say one way or the other, but it looks like the glass is thick enough to support without those braces.
"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