Need help what is this

[mafiareefer]

One of female flames is getting that weird little white spot on her fin

 

[Frtdrmrose7]

How long has that been there? Can you describe it? It’s hard to see it in the pic.

 

[mafiareefer]

How long has that been there? Can you describe it? It’s hard to see it in the pic.

I saw it for the first time today. It looks like a piece of dead skin on his fin

 

[Frtdrmrose7]

I saw it for the first time today. It looks like a piece of dead skin on his fin

Could it possibly be leftover sleeping cocoon still stuck to her?