Brace the top over your baffles. If you use a glass tank no additional bracing will be needed. You can use epdm rubber to make adjustable baffles instead of fixed, you just cut the baffles narrow and apply the epdm to the edges. Works great and reef safe. ADHI makes nice stuff and I have two of their tanks but it's $$$$ and I believe the business has been for sale for awhile so I don't know what to expect should I ever have any warranty issues. That aside ADHI is first class and I don't expect to ever have an issue. You might contact Fluid Dynamics as well. I have a few of their frag tanks and they're high quality as well.