Pimple on my axie??

[SuperPenguiin]

Hi. Can someone please help me? I’ve just noticed today that my axolotl has some sort of pimple on his head, i’m unsure as to what it could be and i’m honestly stumped as to what I can do to treat it or make it go away. Does anyone else have any experience in this matter?? I’m scared that it’s something serious. His water is alsways kept clean, he’s fed everyday, water temperatures are perfect, so i’m lost as to what it might be. Please please help!

http://i.imgur.com/QOHuRi8.jpg

 

[Otterwoman]

I think this issue has come up before. Try doing a search.