Thank you very much, Dr Heok Hee Ng. They have a strong caudal fin, but the lateral line and the lower jaw is not good to see. My first guess was a Pangasius-Pangasianodon hybrid. But I could not find any scientific articles about hybrids of Pangasiidae to assist this theory.

I had to upload the videos on a free temporary server (guess no video attachment allowed here and BB-Code only for YT):

https://vid.me/seX4
https://vid.me/SiuS

They are 12 inches long and about 1 year old. In their natural habitat they can grow in the first year up to 4 kilo!

Hello to all, I'm Alf. Hopefully nobody will beat me when I use this older topic for a new but similar question to the one above. From a professional dealer I got an offer for a pair of "Pangasianodon gigas". A dream of me since a decade, after keeping some other species of the genus Pangasianodon ...