Just a follow up for anyone battling this black/blue clove polyp (BCP) with Fenbendazole. Since I planned on chucking this rock regardless, I decided to set up a separate 3 gallon QT (cheap light, heater and powerhead) bucket for this rock with BCP (it had some mushrooms on it), and dosed 1 whole pill of Fenbendazole that I got from Ali. Then I just waited and see what happened. I was curious how long it will take. It took about 2-3 weeks for the BCP to die, and I think I left it running for 4-6 weeks...just to make sure all to get all the roots are gone. So I think it does work. No long term study was done to see if it can last long term because I chucked the rock afterwards and bleached/sun dried everything.
I think I used a much higher dose than most people on R2R. They were dosing their display 1 pill for a big tank. I didn't care about the rock since it was in QT bucket, so I just filled a 5gal bucket half way... and put the pill in.
What I learned is that a dip in Fenbendazole will not work, it takes over a month or more to fully die...at the dose that I used. Now, I got the pill from Ali (Amazing Aquariums), so I don't know what brand it was. But Fenbendazole does work to kill BCP. The mushroom also survived the whole treatment with no issues. I saw the bristleworms died as well.
I total forgot to update this when I ran the experiment. Hope this will help someone in the future that wants to treat for BCP.
