Having trouble acquiring a center piece for your monster aquarium? Peacock bass grow to have very beautiful colors of green, yellow, red and black. Growing around 10-36 inches these fish need quite a bit of space, not including if you add more than one peacock. Since Peacock Bass are primarily piscivorous, meaning they mostly eat other fish, feeding them a diet that consist of a high quality pellet food, live foods, or frozen foods works wonders! Some tank mates for these fish include other large Cichlids, Arowanas, Stingrays and Silver Dollars or Tinfoil Barbs.