My female that i grew up from 0.5" to 8" was a complete wimp, she lived with Gold, Green, Red Spotted and Rotkeil Severums, Salvini, pink Convict (i still have her lol) Gibbi Plec with Tiger Barbs as dithers in my 6ftx2ftx2ft, never any problems.
She was horny all the time tho, always in those amazing breeding colours of black and white.
I tried breeding her with a male A grade ZZ Red Dragon Flowerhorn and male blood parrots, never got any fry tho, the males where probably sterile.
In all honesty over 15 years of fish keeping, i have never seen or owned a nasty Carpintis.