Yeah so I give them pellets and some frozen and live food, I also hear some people feed theirs fruits and vegetables, though I haven't tried itOscars are omnivores, quality pellet give them all they need for that and over dosing with proteins adds to nitrate creep. I gave freeze dried super krill soaked in boyds over night the night before water changes because I new it was going to send my tank over the edge but I water changing in the morning so no worries.