I've got some divided 75g tanks that I am taking the dividers out of and am wanting to know how to go about giving them some new crossbracing. They were divided into thirds by glass panels that were simply siliconed in place, albeit very snugly. Would it do the job to have some glass pieces cut to size and silicon them in at the top where they would look (almost) like traditional crossbraces? I've been using one of the tanks without crossbracing for over a year now with no incidents. I've noticed a very slight bow in the front panel since day one, and it's always made me uncomfortable. Any thoughts or input would be appreciated.