Broken fin?

[jaybfresh]

Hey guys. My yellow tang has stopped using one of his pectoral fins. No external wounds, and he is still swimming about ok and eating.

Any cause for concern? Is this a symptom of something else?

 

[Gwynhidwy]

Clamped fins are a cause for concern, but as a sign of disease I think both are involved, not just one side. I would watch him for other signs of disease before doing anything.