11-10-2008, 08:16 PM
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Treating internal parasites with Fenbendazole
I recently ran into a camallanus infestation in my fish which seemed resistant to levamisole (Discomed) which is usually what I treat it with. I did tons of research and finally concluded that I would try treating with Fenbendazole, which is available as a dog dewormer. The brand names in the US are Panacur and Safe-guard. They are both the same thing (22% fenbendazole) but only Panacur requires a prescription from a vet. I picked up the Safe-guard at Petsmart for about $15 (Petsmart is horrible, but my LFS didn't carry it).
I dissolved 1/8 teaspoon Fenbendazole in Garlic Guard, Entice and Vita-Chem (fen. is nasty tasting, gotta add flavor enticers to convince your fish to eat it). Then I added 2 cubes of beefheart. I added a teaspoon of Focus (by Seachem) which binds the medication to the food. Then I let it all soak in for an hour or so. I fed the food and within the hour my Bolivian Ram (the only one displaying worms protruding from his vent) passed a dead worm. I fed the food for three days to be safe, and fed the same recipe again a week later.
It all worked perfectly. The fish displayed no discomfort (aside from mild annoyance with the taste of their food) and it has not come back. Most of the fish didn't appear to ingest much of it, as they spat out most of the bites they took, but I guess they got enough in their system. I had a nightmare of a time finding detailed dosage instructions online, so I wanted to make sure I shared mine. I didn't notice any snail die off (I've got tons of MTS) and I treated plecos, cichlids, cyprinids, a betta, cory cats and a few others, who all appeared to tolerate it equally.