[bell]

as long as it has the top center brace it may be fine, i would slowly fill it and watch the sides for flex.
how thick is the glass? that looks like a 125-150 gallon, does it have a frame around the entire top edge? if not it may not work and could crack under the pressure (it'll flex when you fill it up), you can order a new plastic frame which they use on fish tanks if it's a standard dimension, i'll dig up a supplyer tonite when i get home if that's the case.