What is this on her tail fin? Pictures inside

[mrfestae]

Dark coloration near the edge of the tail fin is likeyl related to this spot on the base of the fin just inline to the right.

any ideas what this is?

thanks

https://www.monsterfishkeepers.com/...-tail-fin-is-this-normal.712235/#post-8036283

 

[mrfestae]

anyone?

 

[King Fisher]

Maybe just slightly damaged. I'd wait and see if it gets worse or goes away. Sometimes water quality issues can cause issues in the fins and tissue of the fish. But if your water tests good then I'd assume it was damaged against something.