It's c. apurensis, the first photo is of a very young c. apurensis with the distinctive black pigmentation that's normal with small specimens that disappears as they grow. C. nigricaudus from Suriname also have lots of black coloration when small which they retain as they mature but it's unlikely to be that species as they are rarely if at all, imported. Viktor's photo is obviously of a c. apurensis. They are too commonly marketed as c. fowleri which haven't been legally exported from Brazil for a decade or so...
It's c. apurensis, the first photo is of a very young c. apurensis with the distinctive black pigmentation that's normal with small specimens that disappears as they grow. C. nigricaudus from Suriname also have lots of black coloration when small which they retain as they mature but it's unlikely to be that species as they are rarely if at all, imported. Viktor's photo is obviously of a c. apurensis. They are too commonly marketed as c. fowleri which haven't been legally exported from Brazil for a decade or so...
I'd say yes, most likely apurensis, if not, a rare batrochoglanis species? Not knowing the size of the fish I suspect it's maybe between 5 and 7"? Notable is the dark bands and the large dorsal fin. If c. apurensis, as it grows the bands will disappear into the usual spotted pattern and the dorsal fin will become more proportional to it's overall shape as with adults. Baby flathead catfish will have similar banding that disappears as they grow. Leiarius pictus pimelodid's have huge dorsal fins as juveniles but the size lessens with growth, like puppies that grow into their large paws. For sure if it grows past a foot or so it won't be a batroglanis sp. It's great that the fish is eating pellets and shrimp! No need to wean it off live feeders if it never had 'em. Very nice looking fish...
With all due respect I submit to your Pseudopim supremacy... but IDK what it is, Kirk
Yellowcat ... something looks off to me in this fish. The eye size, the mouth shape, the head shape, the barbels, I can't place my finger on it. Could be all of the above. Those look like huge eyes for an apurensis. The lower jaw should surpass the upper, not vise versa.
It could be that I have almost no experience with smaller apu.
I hope we'll get to see lots more updates. Thanks, Tommy.
I'll throw in my apu photos but these are all over a foot, these are 7 different specimen: