I think that the wrasse that worked the best for me when I had a serious outbreak was a Melanarus wrasse. Gorgeous fish....ask Mr. Cob or Justahobby. Gabe gets them in regularly, or am sure that he can get a hold of one pretty easily.

And when I was looking for Flatworm Exit, I only found it locally at one shop and I paid a hefty price, nearly double than what online vendors sell them for, for what it's worth.

And Flatworm Control works just as well as the Flatworm Exit and it is a little cheaper and is more readily available through local vendors.