What camera did you shoot the video with?
Also, since you're already defending the term "rimless" - "cube" implies 3 dimensions measurement the same. What you have there is a 
rectangular prism. It is a 
very nice rectangular prism though. 
 
Just kidding BTW, don't worry about it. (Although .. MY tank is an "actual cube" at 30x30x30. So there! 

). But, I don't features on glassbox design, so don't worry, you still win. 
