Hello, I just got these two groups of Corys at two different stores. One group came from one of my LFS so I'm confident that they're Emerald Corys (Corydoras/Brochis Splendens, I think they're the same species). I got the second group from a local Petco and their supposedly Emerald Corys, but seeing the two groups side by side has me a little worried. The group from the LFS has that beautiful metallic green coloration while the Petco group has a more brown body with a darker spot behind the head. The picture is blurry, but I think it shows what I mean.