two problems with the "theory", unfortunately
1. acrylic can bow/bend/warp, either on its own or due to the heat of a hailde (which is why you want to remove the center brace in the first place). so, some high tech and tested acrylic would need to be used to avoid any future issue. check rc, youll find a few that learned the hard way.
2. the new brace must be installed Before removal of the old one. its more difficult, but doable. if not, the tank will "give" a little, like tanking off your belt after dinner, and the resulting new brace will not be properly in place. even a fraction of an inch will almost definitely cause issues in the future.
makes the oceanic look more affordable now doesnt it, lol