I'm not a parasitologist by any means, but I wonder if SMB are carriers of any significant parasites. I know that bluegill, LMB and YP regularly carry parasites. I also know that I've never seen a single parasite in a RES or SMB. You'd think that I would have seen one by now. Of course I may be ignoring the possibility of parasites too small for me to see. What you're saying is that you want to quarantine the fish. This is Pond Boss herecy, but I think you could find information on a koi forum or aquarium forum on appropriate quarantine meds and duration. Good quesiton.

Holding a redear sunfish is like running with scissors.