Axolotl Not Eating?

[Zylax]

I've got an axolotl that's about a year and a half old, and recently stopped eating. Not only that, but her gills have been very pale lately as well. I've tested the water parameters, and ammonia and nitrite are both at 0ppm, while nitrate is at an acceptable level. She is still active, walking around the tank and whatnot, but whenever a worm is offered to her, she will immediately turn away and shows no interest in it. I had thought that perhaps she was impacted, but I have no substrate in the tank, and there is nothing small enough that she would be able to swallow and get stuck. It's been almost three weeks since she last ate, and several water changes and filtration media swaps later, I'm completely out of ideas. Is there anything else I could try to get her to eat, or any other ideas?

 

[wolfen]

I've got an axolotl that's about a year and a half old, and recently stopped eating. Not only that, but her gills have been very pale lately as well. I've tested the water parameters, and ammonia and nitrite are both at 0ppm, while nitrate is at an acceptable level. She is still active, walking around the tank and whatnot, but whenever a worm is offered to her, she will immediately turn away and shows no interest in it. I had thought that perhaps she was impacted, but I have no substrate in the tank, and there is nothing small enough that she would be able to swallow and get stuck. It's been almost three weeks since she last ate, and several water changes and filtration media swaps later, I'm completely out of ideas. Is there anything else I could try to get her to eat, or any other ideas?

there is a variety of food that you could try her with ranging from live ie.. shrimp/fish/worms, frozen ie.. bloodworm/brine shrimp/krill/mysis/chopped mussel/chopped cockle/chopped prawn/beef heart, there are also pellets.
check the temperature aswell as the water hardness, also make sure you have an air-stone installed.