Righty, here goes! Mine are fed mainly earth worms, raw tiger prawn( un shelled) and cut into smaller strips. Occasionally sea food cocktail ( rinse the salt glaze of first and I havent fed crab sticks as they can be full of more additives) cut too size. Raw slivers of fat free beef, pork, lamb, chicken. The chicken heart from the giblets. One of their favourites is live river shrimp ( from our local aquarium) , these are great as they can be stalked by the axolotl and if they are not caught help to keep the tank clean. I aquired a couple of pond snails that hitched a ride on one of my plants and these reproduced while I was on holiday, these I have seen eaten by my axolotl. Some people feed salmon pellets ( chow?) but as my little treasures are so far fit and healthy I'll stick with their current diet!