I recently got a Perfecto 125g 72"x18"x22" off of craigslist. I sealed the leaks and filled. Overnight, the front facing wall is bowing outward slightly, but enough that it seperated the single center brace from the rear wall. The floor is slightly uneven, favoring the front and left the most. The stand and tank are still very sturdy with no wobbling so I didnt think that would be much of an issue. What should I do about the bowing and lack of center brace? I'm assuming Perfecto wouldnt be very helpful since I have no info on the purchase of the tank.