ya i would say he has ich, did you QT him before introducing, also depending on the amount of large fish you have a cleaner wrassse may be an option because in my case i bought cleaner shrimp and they just hid in the rocks and never cleaned, then i bought some neon gobies but they were so small that within a few days they were all gone so i went to a cleaner wrasse and he does a good job on my tangs. plus i also got one in my 29 gallon and he spends all day picking at my flame angel plus both of them eat prepared foods so thats another plus although not all of them do that so dont make that make up your mind, but im just tryin to show you that not all these species which are supposed to clean your fish actually work