This is my biggest (and fave) african cichlid right now....Fossochromis rostratus.
This one is a male, 13" and growing. Breeding like mad and full of fight.
Pic from today:



this is a fish that most people never have a chance to see in full coloration - and truly the pic doesn't do it justice. iridescent as all hell with colors that change with the angle of light. I compare them to opals a lot, with firey colors under cool blues.