there are plenty of different foods available, food for life i.e. worms, blood, dirt, black, small live fish i.e. guppies, mollies, platies (make sure the fish are quarantined for 30 days to avoid possible parasites/diseases), shrimp/cherry/ghost/river brine, there is also frozen food, i.e. krill, mysis, brine, earthworm, chopped cockles, chopped mussels, chopped shrimp, beef heart, then there are pellets of axolotl and also repashy, if your axolotl is very young then live food will be received better, if your axolotl is adult then frozen or pellets will be well received.