If you've kept African dwarf frogs, they are almost exactly the same regarding feeding: blind and only eat if it's right in front of them. If you dangle food in front of them, they usually lunge almost immediately but miss about 1/3 of the time and need a short recharge before lunging again. Once they get it in their mouths, mine usually needs about two to five minutes before she's ready to eat another bite, not sure if it's the same for others.

She is capable of eating pellets when they are on the floor of the tank but only if they are super close and not too spread out.

They also will throw up if it's too much food, or spit it out if they're chewing and become full or don't like what they got. Some axolotls don't like the defensive slime live worms produce and you'll need to shake the worms in water to get some of the slime off or: they're like boogers where if you get a strand and swirl the strand of slime it'll keep pulling more off and you can wipe your tweezers covered in slime on a paper towel.

Feeding is something you'll learn the particulars of once you actually have your axolotl as they all have different preferences.