The tank probably holds more water than we think. Its elliptical. The center is probably about 12" wide. It looks at least 6 foot long. If you add some aeration and waterflow, it could probably work as a reef.

Terrible tank!

Looks good for about a week or two. My experience has been that narrow tanks are difficult to clean, scratch easily and do poorly for their unfortunate inhabitants. Classic example of asthetics over functionability.
I think 6 months from now they will have so very unhappy clients.

Maybe would work with little or no light and low oxygen lake species.