Hi guys, I want to get some bass. In my region I can find only monos and orinos. So my question is which species is the best for custom 140 (6*2 footprint).They will also have a fire eel and 2 bichirs for tank mates.I know that they get pretty big and this tank is no suitable for life , but for year or two.And which species is less aggressive because I am looking for small group of around 3 fish. Thanks in advance and Happy Holidays!?