Oh, I would most definitely do that! The Zora's Domain theme, from OoT & TP, is perfect to hear in an aquatic environment. It's in my head whenever I visit an aquarium! XD
I'd always thought of having a large greenhouse with tons of exotic plants and butterflies, with hidden speakers playing this:
[video=youtube_share;gGwc9A61GDU]http://youtu.be/gGwc9A61GDU[/video]
K. I've had a dream where I recreate the entirety of hyrule from OoT and allow people to live there, as a country. Then there is the option to go on an "adventure". It was cooler in the dream. I'd do it if I had the money.
In that case, would you mind 'borrowing' those people to me? And while we're at the discussion, your fancy indoor pool as well?
OH OH, and desing it like the TP's Zora's Domain!!