How to effectively remove Flatworm?

[boxfish]

Unless I take out all the affected mushroom/yuma, they are the ones mainly affected, and treat them with salifert in a separate container, then I can see better results.

If I try to add flatworm exit direct to the main tank, result not good.

Any advice?

[Achilles Tang]

You have to overdose to compensate for the many nooks and crannies that the flatworms hide in... some may not get the full dose of the medication to kill them and they will come back again, stronger than before.

After about 5 days after the first treatment, you have to dose again to wipe out any remainders.

I hate flatworms!!