Well, Mollies, Danios (I reccomend Glofish), guppies, tetra. Maybe an exotic pleco. NOT A COMMON!!! Hmmm... oh, and Dwarf Gouramis.
First put in a couple feeder guppies or rosy reds to start the nitrate cycle.
Then, after a week with those, put in a few more. Just let the bag float for 15...