Are Tatuaia Payara more aggressive than Armatus?

[Simonas]

I have in my 9ft tank amongst other fish an 8" Armatus, 7" Tatuaia and a 12" Vittatus.

The Tatuaia chases off the Vittatus from time to time and also has a proper go at the Armatus causing a bit of a bite to its back last night

Are they known for being more aggressive? I might have to rehome it if it continues

 

[Ansorgii]

I kept both and my tata was a shy coward.

I would suspect its down to the individuel. If he causes to much trouble remove him.

 

[Simonas]

I kept both and my tata was a shy coward.

I would suspect its down to the individuel. If he causes to much trouble remove him.

Thats what I expected with this one but he is definitely punching

He will be going if it gets too much but I am loathe to at the minute as hes a good looking fish that I have had a year but an Armatus was my dream fish