Sun corals from tank with black ich

[stephen.davis.]

Found some sun corals on Craigslist but the guy says he has black ich. Is there a way to treat the sun coral or should i not even concider buying it?

 

[Cheebs]

There are ways, but totally not worth it.. I would never risk introducing it to my tank for a decent deal.

 

[stephen.davis.]

Thank you for the advice