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ID this ambiguous Catfish, got this catfish from Peru

Posted: 20 Sep 2017, 21:16
by justyere
Excuse me, i want to ask about this Catfish ID.
I got this fish 2 month ago and the growth rate is very slow.
I don't know the ID because it's similar with Brachyplatystoma Vaillanti
The Characteristic and food :
When i got it, first is very calm and friendly with other fish. Never attack other fish and peacefully. After around 1 month, this catfish turn into aggresive fish with other fish especially catfish and same kind.
first when it arrived inside my tank, this fish want to eat pellet ( konishi sinking ) now eating small fish.

i don't know are this fish is the real vaillanti or fake vaillanti 😵
because when i got this fish, the local people call it 'cunchi salton catfish'

anyone can answer and solve my Catfish ID ?? Hopefully i could get and know the ID of this catfish 😊
IMG_9612.JPG
Thankyou very much 🙏

Picture :

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 21 Sep 2017, 19:14
by justyere
Can anybody help to solve the ID of my fish ??

Thankyou 🙏

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 21 Sep 2017, 19:45
by fat meloe!
Unfortunately, I cannot ID your fish.

However, I might have an idea why your fish suddenly became aggressive.

In my book Exotic Marine Fishes,of which the famous Herbert Axelrod was a coauthor, it said that fishes in an aquarium are often less aggressive when newly introduced because they have no territories to guard and are somewhat terrified of each other.

Cheers

PS: Why are pictures upside down?

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 22 Sep 2017, 01:50
by Viktor Jarikov
This fish is familiar to hobbyists. Yet, I, for one, am not sure what it is, although I've been seeing it for several years now pop up here and there. This thread and those linked in there should start steering you in some direction: viewtopic.php?f=13&t=38098&hilit=vaillantii

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 30 Jan 2018, 15:41
by justyere
Update Pic
Any Idea what kind of this Catfish ?

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 30 Jan 2018, 18:13
by catfishchaos
Looks like or to me but I could be mistaken

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 22 Mar 2018, 23:44
by Fishmandavew
Bottom photo in original group is not an iheringichthys, snout too wide. Money on viallanti, but will only know really as it grows a little more. Bit like my sperata, which is turning out to be aor and not acicularis.

Re: ID this ambiguous Catfish, got this catfish from Peru

Posted: 29 Mar 2018, 02:23
by Viktor Jarikov