before you do anything. STOP.
Do not freshwater dip it, you'll kill him.
I just added a fish and it spread its LFS ich disease to some of my fish. I dont stress i dont bother. I just feed and eventually they will be fine. I suggest you do the same and to not panic and do something drastic to it. Let it get acclimated and use to your tank. it will eventually go away. or wont be visible.
Do not freshwater dip it, you'll kill him.
I just added a fish and it spread its LFS ich disease to some of my fish. I dont stress i dont bother. I just feed and eventually they will be fine. I suggest you do the same and to not panic and do something drastic to it. Let it get acclimated and use to your tank. it will eventually go away. or wont be visible.