6ft tank, no center brace

[knox_rbp]

I have one of these 125g and have not had any problems. The deflectio is not very much but is noticable if you make your own tops for it. Also have a 175g 6'x30"tall and i forget the width,with no center braces. The glass on it is thicker than my 220g double braced.

 

[Egon]

I have one of those tanks and it has been running as is for years with no problems.

X2 Mine has been filled for years, no issue.

 

[RODinCALIFORNIA]

you could always add a glass center brace if you are concerned its very easy to do.