Have been spotting more and more flatworms on my LPS and softies. I don't really see them on the glass / rockworks (though I'm sure they are there) and seem mostly prevalent on coral. Dipping each coral individually would be difficult since they are glued down. Would a pygmy wrasse of some kind even be effective at getting flatworms off of a torch coral? (Tank is 20 gallon cube) Would prefer to not have to go down the chemical route with flatworm exit. What are your thoughts? Livestock are currently two clownfish, firefish, and yellow watchman goby, so already near the upper end of fish capacity.