What is it with men on this forum always saying their "wife" or "girlfriend" is giving them problems? If that was the case with me I'd get a new girlfriend ASAP. There are so many wonderful women in the world that you can really find one that is just right for you. If she's giving you problems already and she's only your girlfriend, then imagine how she'd be when you are married....yikes!
Maybe you should mind your own business, especially when you know absolutely nothing about what or who you are talking about.
If someone like you is actually lucky enough to find someone willing to spend the rest of their lives with you and deal with your control issues and self centered righteous attitude, I wouldn't worry about the size of your precious little fish tank.