Could be lymphocistis....
But wait for better opinions.
If it is it has no cure but fish live with it..it comes and goes.....
But wait for better opinions.
If it is it has no cure but fish live with it..it comes and goes.....
Is it a kind of nodule, scarish tissue on the fin? I still do not see it, just asking...
Could be a sign of limpho....
I would say limpho.
This just appeared, he was in fight with shredded fins, was he?