i have had both living together for a while, but thats about it .... eventually the peacock will outgrow payara, and most likely bully him a bit ... i've had both trained on frozen food, however not only does the peacock grow faster, but also will eat much more, thus makingthe growth rate problem worse. i'd say cool for a year, maybe 2 but in most cases, the bass will outgrow, and outcompete, and finally possibly eat the payara. I'd say H. Armatus has a better chance, since they are more aggressive and get bigger and are less tentative, but i still think the peacock wins .... as with anything however, you never truly know until you try, but the odds are def stacked against the payara
