Red spot on my Bala sharks fin

[Curlyloo94]

He’s acting fine but worried about this red spot anyone have any clues?

 

[Colin_T]

I cant see anything on the picture.

Do a 75% water change and gravel clean the substrate every day for 2 weeks.
Make sure any new water is free of chlorine/ chloramine before it's added to the tank.

 

[Curlyloo94]

Think it’s clearer in the video it’s like it’s under the skin and I’ve cleaned it all out tested the water too and it’s sitting perfect just no sure what it could be

 

[CryptFan]

We need
Tank size
Stocking
And water parameters

 

[Barry Tetra]

Can we have a clearer picture?