was that supposed to say do i need to use salt??
I would use the following, Medaflex, Salt (medaflex brand fungus stuff) Heat and dark.
This solution may be not so good for your plants.... So anything super special should also be removed, maybe toss it in with the bn.
Before you add your pleco back to the tank do carbon for 3 days and a water change on each day. you can take your old carbon out and bake it in the over to reactivate it.
Also this is a lesson on the hospital tank. Make sure to quarantine anything new for 1 week min, some say two. PERSONALLY I think 7 days is enough to see if a fish is sick, but you may be better safe then sorry.
Assuming that it is fungal it will go away rather quickly, you should be in good health by the weekend.
such has been my fungus exp. at least.