I have been wanting something more out of my fish lately, instead of having a shy/pretty fish like my geo, i want one that is more of a personable fish...something that will greet me when i walk in the room, like an oscar, but i only have a 55 so im trying to stay away from oscars...i just want a fish that will be compatable with my severum because he is not shy at all but my geo beats up on him so i just want the calmer/personable fish...any suggestions?