Axolotl tumor?

[MaggieTG]

Hello, I have had my little axolotl for a few years now and he’s always had a little black/brown spot on his head and as he grows it grows with him. It is not raised or bumpy, but it appears to be deep in his skin. Its never seemed to bother him and he eats regularly, but I’m concerned that it may cause issues in time. Any ideas or advice for my lil guy?

 

[Mother of Dragons]

Since its not raised, its no cause for concern at this time. It could very well be a birthmark. If the spot hasn't caused any problems, I doubt it ever will.