I personally like the looks of a schooling fish. I have barbs in my tank currently and they work great but silver dollars, tats, armatus, giant gouramis, dats, bass and alotof others are all great tankmates but as allready stated your tank size is not going to work for a lifetime, it's size is even to small for 1 female motoro. Like tk said a tank 2x the size would be great foe a lifetime.