I've had a cleaner wrasse for over a yr now, love him, he's an awesome cleaner and most of my fish love him. I do believe he will eat ick, unlike others. But it won't cure ick. I have a cleaner shrimp as well and he does a great job too, but does nothing compared to the wrasse. I had ick a while back and my dog face puffer would allow the cleaner wrasse to swim inside his gills and let him eat away at it. This is why i believe they do eat parasites. My wrasse will eat formula 1 and 2 along with mysis and brime, and anything else i throw in there. He swims with my puffer like they have a simbiotic relationship. Would i suggest one? No, they are very tough to keep and are not good to take out of the ocean. But i love mine!