Cleaner Wrasse

[BlueZquirrel]

Does anyone have experience with Cleaner Wrasses? I have had problems with Ich in my tank before. I have heard that cleaner shrimp, neon gobies, and cleaner wrasses are good for picking parasites and controlling ich. I am looking into purchasing a small dwarf lion, so the shrimp and gobies are too small and will probably get eaten. The cleaner wrasse seems to be too large for a small lion to eat. However, I read some articles on wetwebmedia.com about Labroides that indicate they rarely survive more than a few weeks. I don't want to contribute to their mortality if this is true. Any info?
Thanks,
Tracy