flatworms

[i have crabs]

ive had a small population of flatworms since buying some rock in january in one of my tanks, the first time i used flatworm exit most of them died like they should have, a couple days later i still had a few so i dosed it again and only a few more died, the third time i dosed about double the ammount and it didnt do squat.
i left it for a couple months and the worms have increased in numbers but still a very small amount, ive added a mystery wrasse and i havnt seen him touch them at all, just a couple days ago a dosed flatworm exit again, right off the bat i did douple the ammout about 160g worth in 60-80g or water i left it overnight and dosed another double dose in the morning so a whole bottle in less than 24h maybe even less that 12h actually, it killed some worms it killed my pods but it didnt kill the flatworms,
i would swear flatworm exit is garbage if it didnt work so well the very first dose, so im thinking the rest i have are resistant to it.its a very small population right now and hopefully will stay that way, i might try some other fish to eat them but havnt decided yet

[The Codfather]

Couple of 6 lines, worked for me.

[J.Lloy]

I did a multiple treatments with flatworm exit then added a pair of yellow wrasses and they have been gone since.

[landshark]

Thanks for the info. Not sure what to do with Flatworm exit after reading reply from, i have crabs. I feel his frustration, but it did make me laugh. Maybe a 6 line Wrasse it is.

[lorenz0]

flatworm exit works great. i have been treated my tank with it and appears that i took out most of them. I am going to dose again and add a new wrasse

[aquatic_rice]

i noticed a few flatworms in my tank before but after i got a 6 line wrasse i never saw any again.

i havnt any experience with flatworm exit, but from wut ive heard it only kills the flatworms but not the eggs; also kills some other good worms n stuff