Intestinal Worms or Parasites

[LeanneP]

I have a fish with stringy poop and I have done two treatments of prazipro for two weeks in a row. One fish is still showing signs. Should I do a third treatment in a row or stop for a week and do another week after? Anyone have any experience in this and what worked best? Is there any other medication that works well for this? All fish are eating and don't seem to be stressed at all.

Leanne