is my axolotl ok?.. is this a tumor?.. if this isn't healthy..how can i help him??... he's in a 20 gallon tall..with a gigantic sponge filter and whisper 60gal airpump...
if you didn't know i'm talking about the tumor "bump" behind it's hind legs..
What kind of red has his tail turned to? It's normal that axolotls get this black pigmentation in their faces during time but red does sound a bit weird in my opinion.
I have two white coloured axos and one time my girl got bitten by other one in the tank and her wound got inflamed and it was all red - and had to be put on medication to get better - but I don't know if that's the case in your situation.
Axos also may produce these mole like small red spots on their skin, but they're harmless