SaltWaterIsSoCooL,
If it is ick, then you will need to put your fish in a hospital tank and treat them there, or use the garlic method.
Ick will remain in the tank for several weeks, without a host, and then die. There are many posts on the forum about ick. Just do a search, I thought I read one within the past 2 days.
Try this <a href="https://www.saltwaterfish.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=12&t=009066" target="_blank">Ick thread</a>