Well, I don’t keep snappers (I have box turtles), but my guess would be that you would feed them a diet as close to what they would get in nature — you want to mimic their diet as close as possible in order to meet their nutritional needs as well as their behavioral predatory needs. read more
Snapping turtles are omnivorous in nature, feeding on a wide variety of live prey and also eagerly eating floating aquatic vegetation. In captivity, they feed aggressively on fish, worms, and crayfish, and will eat floating commercial pellets as hatchlings, juveniles, and adults. read more