Hi Invader675
Do you like aquatic frogs?

African Dwarf Frogs are something to consider then.
These little fellows are popular with many dorm dwellers because they are so cute, they take up very little space, and their tanks are small enough to be entirely portable during school breaks.
Several of them could live very, very comfortably in a 5 gallon tank as long as it has a secure lid. They do not need filters or even heaters if the room is in the comfort range. When you need to move it home or back to college, just drop the water to a low level, put the tank in the car and go. When you get to your destination, just refill it with dechlorinated water and you are all set.
Here's a link with lots of information about them:
http
/www.fishforums.net/index.php?showtopic=18252
It would be possible for you to keep one or possibly 2 of the bigger African Clawed Frogs in a 10 gallon under similar conditions, but it would be harder to move it back and forth when necessary.
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