We have 2 Nigers, bth well over 2ft and deep bodied, aren`t they just the gentlest of fish?
What size tank/pond do you have him in? I take it from the 'my one monster' that he`s kept alone??
I've got him in a 600 gallon indoor pond with koi, green terrors, uaru, oscars, severums, chocolate cichlids, a baby giraffe cat, and plecos
I'll hopefully getting another, but only about 16" and will look like dwarf