some other options is the tank transfer method and hyposalinity , both are proven to work.
i find hypo the easiest and less work but does not treat MI
for the record...cleaner shrimp, fish etc. do not cure fish of ich lol they clean dying flesh, small parasites etc. while it may much the odd ich parasite it will not cure a fish thats already showing signs or keep ich out of a tank.
i just ran all my fish through a 2 mth hypo treat ment , kept the tanks at 1.009 for 2 mths and ran it with a few pieces of liverock. did a water change twice:P
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