How old is your axolotl?
Mine are juveniles. I'm guessing around 3-4 months from the timeline I got from the breeder, and around 5.5" long. I feed them daily. When I first got them they were 3 inches and they went through a teaspoon of live blackworms in 7 days. Now they go through 2 teaspoons of blackworms in 7 days, plus 1-2 baby nightcrawlers. Not sure what the exact amount I feed them each day, but I suppose it's 1/7 of 2 teaspoons of worms lol. If your axolotl is an adult they feed once every few days to my understanding, however my experiences are limited to juvies so I'm not exactly positive. People also feed theirs sinking carnivore pellets. I tried these, but they did not like them at all so it's just blackworms and nightcrawlers for me!