Thomas Labs Fish Bendazole 250mg Fenbendazole Powder (12 packets)

Works great for internal parasites. It's been a lifesaver for me.

Because this out break occurred in my snail tank, I couldnt follow the instructions to a T so I'll admit my results might have been squewed. This prevents me from giving it any more or less three stars because I don't really know if it worked as well as it could with me not following the directions, or if my betta fish is just super hardy.I followed a vet recommended recipe and made some fish food with this mixed in for my betta that has camallanus worms and have been feeding it for about 10 days (more than what's recommended on the box but was recommended by the recipe). My fish has gotten a little better and seems to have perked up quite a bit but the worms are still visble on her. The worms have gone from pinkish red to almost greyish brown, so I'm going to assume that they are starting to die off but haven't yet dettached. Today is going to be the last time I feed her the medicated fish food for now and she's still alert and active even after showing worms for about 3 weeks now. When the mortality rate in fish this late in the infection is somewhere around 80-90%, it might be safe to infer that the meds have been helping.I'm gonna let her rest for a few days and I'm going to dose tank with Levamisol HCl to ensure that the worms are gone.

I bought this because my gold Gourami, my 2 Angel fish, Blue Electric Acara, Turquoise Sevurm had Camallanus worms. I bought some stuff from Petsmart with a different ingredient and it didn't work. I decided to buy this and it did the trick. I was unsure at first but im glad I bought it. I mixed 1 packet in 4oz of blood worms and kept it in the fridge and feed it until they disappeared. I would say about 1 month.

Dosing was hard to figure out. Getting your fish to eat the food was even harder. My fish ended up dying. The worms never fell out. I pulled out one. I don't know if it was me or the product or the combo, but it wasn't a good experience.

I’m not sure if this even worked, I used as the instructions said and it didn’t want to mix with the food very well and just made a mess. I went with levamisole HCL from eBay, worked within the first hour.

I mean is it effective? I can't really say. All I can say is I lost a lot of fish.It's messy and hard to mix into the food. It goes bad quickly. The fish barely eat it.It's just a headache. The means of delivery of the meds is not conceived properly.Save yourself the trouble and get the tetra paraguard tabs.

good product but it does include sugar.

Did a great job removing hydroids from my reef tank.