I've noticed something as I observed most of my male CA cichlids (Salvinis, JDs)(SA Festae) from the side. All the fish that I know are male exhibit the pointed papilla. It's small but visibly showing on their underside. All the fish that I know are females do not exhibit this. Even fish that are small (my 3 inch male Salvini and one of my 2 inch Festae) clearly shows their papilla. I was wondering if this is a reliable form of sexing fish?