Hi everyone, my roommate and i want to get a fish or several for our dorm room. One or several in a bowl, not too big though. We're looking for something that doesn't need an airator (yeah i can't spell) and doesn't need a heater. Also something that is easy to take care of, maybe cleaning the bowl once a week and feeding once a day. We would also like to stay away from the traditional beta or goldfish. Any ideas??? Pictures would also be great! TIA!!!