i agree with dan, you need to question the durability of that stand, if its bowing now and its not full, whats going to happen when it is full, you start causing turbulance in the tank with waves, moving water has allot of force, instability can be a disaster, my 175 is about 1/4 to 1/2 off from left to right, i let it be because i would rather deal with my tank being a little off than compromising the integrity of my stand, and my stand is all hardwood, besides once its full you cant see that the water line is uneven unless you let your water level drop below the tanks top trim, pressed wood sucks, especially where water and moisture is prevelent