Yep its ich. Thats why your cleaner shrimp is trying to clean him, they like ich bugs. But the cleaner won't beable to get all the ich off him, i see trouble ahead, if you had him in a QT your other fish would be safer, so now you have risked your whole tank. Sorry, this is not what you wanted to hear, but it needs to be said, get him into QT asap.