I hear not all animals like Turks, though. Some big name crested breeder said his animal ate some Turks and refuse more after that, but they love dubia and lobsters. Your best feeder would probably be lobsters nutritional wise because of the shell to meat ratio is pretty high, but keeping lobster can be a bit hairy. Unlike dubia and Turks, they can climb smooth surfaces like glass, so you'll need to apply Vaseline about 3-4 inch wide around the top so the lobsters can't climb out and all over the place.