Anthias got stabbed by Kole Tang

[danizufelt]

I just bought a Lyretail Anthias and a Kole Tang, looks like the Tang got a jab in while they were in the acclimation bucket and now the Anthias has an open wound on it's side. Is there anything I can do about it, or just hope for the best? He's ok for now, eating, swimming, etc.
Thanks!