Nice! I love how yellow (mine is more brown) and large are the light-colored patches and how much more streamlined the body is. Most usually irwini that size are almost (american) football shaped, including mine. Could be that this is a male or simply that it has strong competition for feed.
My 24"+ guy and 5 smaller ones through the last 7 years:
I highly doubt it as it was describe first in 1888. . The actual name is Megalodoras uranscopus now not sure on the history of the irwini name since they changed it some years ago.
Hope everyone is doing well! Anyone heard of this Tocantins ’24K gold’ Giant Talking Catfish (Megalodoras cf. uranoscopus) Irwinni Catfish Are they more gold color looking from the Tocantins River?