My brother said that he had seen yellow Jack Dempseys on the internet before after I asked him if he might know what kind of fish this is. Clearly next to my other Jack Dempsey, they look like twins, despite the yellow on the one. Anyone know more about this? I got him at a pet store, but they didn't know what he was, cause someone had left him in a mayonnaise jar in one of their aisles. They gave him to me for free. I like him never the less though.