Reef safe flatworm eating machine

[carriej]

Thread title.. I need one

Something that won't eat my little francois (cleaner shrimp)

Clowns haul him around enough. However I have a flatworm issue and I want some type of wrasse anyway.

I don't really want to go the chemical route - too many stories of scary nukings and my tank is hard to get at it vaccuum the little buggers.