Saw that in that other thread and was sort of surprised by the lack of gooshing comments, glad to see you posted it again.
LOVE this. The surfboard is a nice touch, haha.
Not sure what to think of the oval shaped tank though. The theory of it looks absolutely awesome but I wonder about the long-term practicality of it. Harder to keep clean, you get weird distortions when looking at things that are not directly in front of you, and so on.
Problem with going with acrylic though is I don't think you can get an open top like that.