This is the best picture from my thread. I have a platform my tank sits on. There is room on 2 sides to walk around the tank. The white square on the right that opens to the room on 2 sides like yours, is where the tank sits. My tank is 5x5x3. I cannot reach anywhere near the bottom with my hands in most of my tank. It makes for some interesting maintenance tools. Placing corals on rocks with snake tongs is fun.
Unbelievable set up! Using tongs with heavy coral got me thinking — I should definitely go 36” x 36” x 36” so that is the most recent change. More to come!