I'd like to see that the head does look blunterI'll take a pic of both of mine for you. If you want. They do look similar and it's easy to get mistaken
Not a wallago it' a ompok siluroides I have both a ompok and a wallago. A wallago's head is flatter and less round. Ompok don't get big maybe 10". They don't do much exept hover or lay on the bottom
I new they didn' get that big but never looked it up.according to planet catfish ompok get 18" but it does look like one