Huge tank with no bracing???

[JraGold]

I did fill it over the weekend without braces ad the glass flexed 1/16" total. So 1/32 each side. Here's a pic

 

[JraGold]

Well here it is! All setup! Took awhile but it's done and done properly.

 

[JraGold]

I still have lots of work to finish the entire project but now the tank is basically done. Now the fun part!!

 

[JraGold]

Well that was short lived.... One of the braces on the 265 gave way last night... Was forced to swap the fish back to my 110. Guess I need a bigger euro brace.. It was a 3" brace 1/2" thick. Was told that would be plenty..

Any suggestions would be great.

I'm thinking a 4 or 5"?