The red genes in red vieja are present in many species. the red head and red body gene in syns appear to be different genes but come both origionally from wild stock vieja. Red genes are present in many species synsp, hartwegi, fenestratum etc. The red monkey is a hybrid vieja created by many years and many generations of breeders trying to bring out these red genes in the fish. Then the parrot was created when they tried to mix in amphilophus fading genes and the rest is history : )