I had a Jewel cichlid and Scat get along. The Jewel was like in love with it or something. Followed it everywhere etc. Maybe because of the Scats odd shape the Jewel saw it as an unusual friend. No pics of it though.
Sorry about pics but they are very fast and my cameraphone doesn't like the basement. Here is my Koi and Roseline Shark. The roseline follows him everywhere.