Also, the flukes will procreate at a rapid pace, so make sure you keep an eye on it. If they procreate too quickly, to where the fishes immune system cannot keep up, you will get into MAJOR trouble; systemic infections, septicemia, bacterimia, etc... and this will usually lead to secondary bacterial or fungal infections...
I always keep formalin, prazi-pro, aquari-sol, salt, and quick-cure on hand for these types of problems.