Also got a few of this, not sure about it's ID also
It has a nice dark blue coloration from head to almost 3/5 of the body and then gradually turn Yellow towards the tail. Very very active...
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The one in the third photo (photo above) is Corydoras concolor. An uncommon but still regularly available cory. Not sure about the first one.
Andy
I put my vote on Emerald Cory for this little guy. He doesn't look like he's doing so hot though![]()
I've search images of Corydoras agassizii, comparing it to the first one, it lacks the yellow coloration on the head and the dark coloration on the dorsal fin is not that visible. Also the doted pattern on the body are more irrgular in my cory compared to the images of corydoras agassizi
Internet images of some cories are not accurate at all. I have 7 Agassizii cories and they look like the 1st photo. I bought them from a well-known cory breeder.