I had been worried about my prochilodus when I first got him because he had been eating live with his previous owner and he wouldn't take shrimp in my tank. Then I got him eating shrimp and eating like a hog until hecan't get anything else down. That made me less worried. Then he still ate both of my prochilodus. Once I saw him harassing the xingu like he wanted to eat them, he got thrown in solitary.