Looking for an interesting fish that will get along with tankmates and will help with red planaria flatworms. LA says all these might eat wild shrimp but makes a point of saying the Dusky may eat very small wild shrimp. I'm leaning toward the Dusky because of that and I just want a somewhat unique fish. Seems the Melanurus may be more apt to eat flatworms though. Tank mates are flasher wrasses, Lineatus and Hooded fairy wrasses, yellow tang, pyramid butterfly, royal gramma and a couple gobies. Cleaner, fire and peppermint shrimp and snails are the inverts. Thanks for advice, opinions and experience.