There is a new strain of Flowerhorn of which I have procured one of the few in the Eastern United States from Jing Chan. It is a Black Flowerhorn, supposedly bred with Cuban Cichlid bloodlines instead of Vieja. Anthony Tu of Frontosafactory has verified their sale in Vietnam. They start off dark purple and the males have a beige or orange hump, and at sexual maturuty they turn black. There are some fair pictures at "Images of Black Flowerhorns"