im not sure how true it is but i was told they inject them with dye.....i have seen these for sale heaps off times and all the ones friends have bought never live long....when i was younger and didnt know to much about them i bought an oscar that was called a hopping oscar (from a pet shop not an aquarium shop),very pretty looked like an albino but instead of orange he had a pink sheen to him needless to say he only lived for 2 weeks

,i have also seen the black oscars in the pigeon blood aswell and again when i knew people who bought them they didnt live long,i found that the oscars they say are pigeon blood in the pet shops are alot more brighter in colour than the red oscars....but i have never seen a fully grown pigeon blood oscar.....