About two weeks ago now I noticed red worms hanging out of the anus of one of my male apistos. He died shortly after. I began to read about what these worms were and how to treat. I found an article about using fenbenzadole(panacur) with exact dosing amounts to mix in the food and to pour in the tank. About two days after I began treatment I found this sticky. After reading it I started trying to remove all traces of the panacur from my tanks. (two tanks infested with camallanus)
Since I discontinued treatment I lost 3 discus and the remaining are tail standing with no balance for swimming and now not eating at all. In my other tank Many of my apistos are visibly infected and since the major sets of water changes to remove the meds many of the fish have died and their fins began to rot off. Still visibly infected, but still eating unlike the discus.
Now I need to know from the experienced, how likely is it that all the fish in these tanks have it just not visible, and should I try a different treatment or just euthanize all my fish, and the discus who now have not eaten in a few days and are doing worse each day, should I kill them. This is really stressful and I just want it to be over.