It actually looks like a very pale bloodfin, which could mean that it is still adjusting or may be in need of better nutrition. That would hardly be unusual for some LFS. The body shape is right and the fins, while not red, are the right shape. It even has the white edging on the dorsal and ventral fins. It could be something else, but I would have to check the net. If I remember correctly, there is a fish out there that is similar in appearance, but not as red. Is there a reason that you are doubting what you have?