Thank you for the help feldon34. I was able to purchase a version 3.1 from the german retailers because they aren't quite up to date yet. In a previous telephone call the woman on the help desk was practically falling off her chair laughing as I asked her if there was an eel in the aquarium. But she couldn't say for sure...only that it was version 3.1. So thanks for the great help.
Thanks for your purchase!
For future reference: Any Marine Aquarium 3.x keycode will work on Marine Aquarium 3.0, 3.1, or 3.2.