I have an exquisite wrasse and a mystery wrasse along with a white spotted filefish, dip all the corals and use a baster on them twice a week, and still the little rascals sneak through. The tank is a heavily stocked 180 with 60 sump and tearing it apart would do the same to me. May try the flatworm stop for the 3 months recommended and see what happens or try levamasole depending on how all this works out. I hate to put anything toxic in the tank especially since we all spend so much time , effort , and money on water and tank environmental purity