Having no center brace is still sketchy for 180 gallon tank even after testing it filled for 2 week. I'd try doing what tcarswell did and add DIY center brace. Better to be safe then sorry.
Having no center brace is still sketchy for 180 gallon tank even after testing it filled for 2 week. I'd try doing what tcarswell did and add DIY center brace. Better to be safe then sorry.