From what I understand that these are a mutated version of the original Jack Dempsey. They are not naturally occurring although they do breed to produce normal looking JDs hence they are not hybrids. Although I have heard reports that experts such as Juan Miguel and Rusty Wessels have said that they are a hybrid descending from Cuban cichlids.
Is there a scientific paper article or evidence that puts an end to this debate?
Is there a scientific paper article or evidence that puts an end to this debate?