[howdy20012002]

I personally have had 2 for 2 for cleaner wrasses eating mysis. they also eat nori and whatever else i feed the tank.
Last shipment I brought in 5 red sea cleaner wrasses and they were all eating mysis from day 1 so you might see if anyone in your area carries the red sea cleaner wrasses.
If it is Ich, personally I wouldn't try to treat it.
I am pretty sure that I have killed more fish trying to cure ich more than the ich would have killed. Now I just let it takes it course.
Ich will not kill happy healthy fish.
If they are starting to show it all of a sudden, I would be more concerned about the conditions of the tank verses the condition of the fish.
If they fish are eating, IMO, leave them be and just make sure that all the parameters of the tank are GTG.
As well, if you do go the Hyposalinaty route, make sure you have no inverts or corals in the tank. Inverts will die and I am assuming most corals would as well.
HTH.
thanks
Neal