sam11909
Maxi Mini
I would think you are going to need more structure on the top, at least one brace, even with all the baffles. Other than That looks awesome!
In the beginning I had planned to have a center brace, but after talking with the guy who cut the pieces for me I decided to leave it out since it would probably not be necessary for what I am doing. He does a good number of aquariums and sumps, so I trust his judgement. It's only 9 inches wide and the water will only be 8 inches deep at max in the 2 center sections, so I'm not too worried. It also snugly fits into the stand with 2 2x4 on each side near the center. Therefore it really would not be able to bow out very easily.