The little wormy things, do they fling themselves back and forth, like, bending in half, straightening out, bending in half? Have you noticed any little flying bugs? I have glassworms, which are gnat larvae in my tank (have yet to find a good way to prevent them). The little white things on the glass are probably flatworms, which are feeding on uneaten food or poo in the tank. Give it all a good cleaning, and remember that there's LOTS of things in the tank besides your axolotls, and that's normal!