How new are we talking? Did you cycle the tank before adding them? I would advise against getting a cleaner wrasse to deal with the ich, he may get infected himself if he gets too stressed. Hyposalinity is alot better way to treat ich. If you do a search, you can find a TON of threads on how to do this.
"If your wife ever asks how much something was for your tank, just tell her you got it on sale and you had to have it! She'll understand"