From what I understand as they get older they lose the orange coloration, two of mine have it 1 of them doesn't. On the other hand the Duplicareous keep the orange patch throughout their lives.
They look like corydoras metae./ bandit cory
Did yours all have it and then one lost it, or did you get them as they are? I've seen lots of large wc adults and they all had the patch. I think you got slipped a Metae!
They all had it when I first recieved them but it has slowly faded over time to the point one no longer has it at all and the other too it is only somewhat noticeable. I got these from a VERY reputtable breeder that is also a well respected member here so I am 1000% positive they are Adolfoi.
