Is my axolotl Happy? How can I know he/she is stressed?

We all want our axolotls to be happy ~ (◕▿◕✿) but there is always gonna be some times where he/she is not gonna be.

It is important to observe your axolotl because he won't tell you he's not happy. So how can you know something is wrong.

Look for his tail, you wanna spot if it's curled it means he/she is stressed.

You can also tell with their gills, if they are curled forward it means they are stressed.

If he/she doesn't have any of that then it means they're happy＼（＾０＾）ノ

*＊✿❀ Moony ❀✿＊*