You have mentioned that you did over dose with PP. And no mention of the dose of the dewormer. Not all fish species take to certain meds well. For example some scaleless fish and tetras can't handle more than half dosing of some meds.
If I knew for sure it was the fenben then maybe I could answer that, but I can only speculate that if it would have happened, it would have by now.
One thing I did come across while searching is that this issue had not been exclusive to discus.
I don't remember if you mentioned it, but was this specifically a fish medicine or a commercial sheep dewormer?
You have mentioned that you did over dose with PP. And no mention of the dose of the dewormer. Not all fish species take to certain meds well. For example some scaleless fish and tetras can't handle more than half dosing of some meds.
My African leaf fish has turned on his side now, could this be a virus? And they are getting sick now because they were weakened by all the meds?
The fish did not take the treatment well. They seemed lethargic and had fin rot and melt. Like you mentioned. I think you answered your own question. I think there's damage you can't see. What ever meds destroyed the tissue on the out side, must have also destroyed some internal tissue too.
I'm not sure. Have you tried filtering with carbon? This would remove any trace of previous medications, if that's even the issue.
I'm still curious about the source of your wormer.
1 discus is ok, ornate bichir is good. Pleco is good. Leaf fish seems to be on the recovery. 4 discus still laying on there sides. Still interested in food and still have strength to dart off when I tried to catch them to move the quarantine.
Hi, the wormer you used on the fish that are turning dark and being lethargic.
Matt
It's at the house I'll update later tonight
Leaf fish is turning for the worse agian, my ornate bichir died. 4 discus same condition. 1 discus is fine. And pleco is fine
Brand of fenbendazole is by tomaslabs
Well what ever it is it is contagious. So thatd rule out over medication or damage to the organs from the meds.
I would not rule out damaged organs. This happened just 3 weeks ago. When you burned/over dosed them with PP; and maybe the dewormer. It may have set in a secondary bacteria infection due to open wounds, skin and fin damage. Who knows...It stared with worms and they could have lived a long time with them. Your first post says that it did damage organs; skin is an organ, also.