My in-laws got me one of those one-gallon bowl (if it's even that big) hang-on-the-wall fish bowls. What can I do with this thing other than punt it into the garbage can? I suppose I could put a Betta in it. I would prefer putting a sponge filter in it but it would probably look goofy with an air tube going into it, and since it's hung on a wall, where does the air pump go? I'd rather not put something in it without a filter so I am thinking about just junking it instead of putting some poor fish through the suffering of living in it.

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