question on building a stand

[enemec1]

I want to build a stand for either a 180 or 210 not sure what one yet. The question, can I build the stand with no center upright brace on the back part of the tank if I use 2x6's mounted to multiple 2x4s on the corner post.
I hope this maks sence.

 

[familyreefer]

no brace

no brace

Here is the frame for the stand on my 220. I headered 2x6's for the front and braced the single 2x6 on the rear. If you wanted the rear clear too you could double up the rear as well. Hope this helps, Scott