Fish tanks are super cool, right?  Well, fish are great to look at, but do you know that they are also a lot of work?  That's right!  Fish need to be fed twice a day, even when you aren't home.  Also, since the water evaporates a little each day, you will have to keep putting more water in the tank.  In addition, the tanks get green stuff growing all around the edges.  So guess who has to clean it...you!  You might want to think twice before getting fish.