Bracing 180 Gallon Bow Front

[BJANJUA02]

I would like advice on euro-bracing a rimmed 180 Gallon Tank with broken centre braces. I attempted to do so myself with poor silicone work and without proper advice and failed. The braces gave after 26 Hrs. Should I remove the plastic trim completely and brace it completely euro style?

 

[SantaMonica]

To do what you were trying to do, you should use acetone. First just to hold it in place (while clamped), then after a day, another soaking to soften/fill the remaining gaps, then allow a week to harden completely. You'll need to remove every bit of silicon first, however if you want to try that now.