I've got a tailspot wrasse who hunts constantly. I used to have a flatworm problem but after I'd had the wrasse for about 2 weeks I couldn't find one flatworm in the main tank. I still had a few in the overflow (man I wish he had fit in there
). Eventually I had no flatworms at all and have been flatworm free for almost 3 years now. Not the reason I bought the wrasse, but certainly a nice little side bonus
