Illness/Sickness: Curved Tail

[AxieWooper]

So my axie has had a curved tail for a few days, she new and i got her a couple of days ago.

My question is is this a normal natural curved tail or a stressed related curved tail?
im struggling to tell the difference. She is still swimming and walking happily also eating well. Her tail will straighten and then curl randomly.

I have tested my water and the only off thing is Ph, it is about 0.5 out. How can i raise my Ph slightly ?

this is her tail curl

 

[AxieLover21]

does it ever straighten out??? mine has a bent tail until it starts walking/swimming
was it bending around?? any other signs of stress??

 

[dumb bug]

Typically when an axolotl is stressed, the tip of the tail will curve, not the whole tail. She is probably just getting adjusted to her new home. She is very cute!