Curious about the one with the golden coloration. Never seen one quite this color. I've had him for a couple months and hes about 12" now and was about 3" when I got him from a LFS.
Part of the issue with IDing them is supposedly fish have been released into the wild causing hybrids as well and of course there’s many tsn hybrids with other species let alone other tsn species. As for coloration there’s many factors with that such as diet, genetics, habitat, mood etc. could be as simple as that specimen is more dominant hence being more vibrant or maybe opposite sexes with one trying to woo the other.
Chances are overwhelming by a million to one that this is anything else but a usual farmie, supposedly a fasciatum but could be an unknown hybrid of several species. We don't know. The market is flooded with them only pretty much.