Nobody eh?
I had the strangest thing happen to my MTS after using levamisole. It was liquid pig wormer from Agrilabs and I had to consult with one of their experts for a few days to finally come up with what should have been a 3.63% solution. Well, my MTS all started floating about two inches from the substrate, I thought one was just climbing on a piece of hair that got in the tank, until I saw all of them doing it, then I thought I was tripping. After a minute, they would expel air bubbles and fall to the floor where they remained motionless, hanging out of their shells. The next day they were no where to be found so I called them all dead. 2 weeks later they all came out of hiding, I knew it was the same snails from the size of their shells. Maybe my dosage was higher than we intended (camellanus immediately started falling out of angelfish), but from now on I consider levamisole to at least have the possibility of being dangerous to MTS.I would advice anyone wanting to grow snails - esp. MTSs - in their tank against using fenbendatzole or flubendatzole in their tanks. I did and for almost a year no MTS survived in the tank. The stuff seems to stick to the substrate sand (don't ask me how) and kill off the MTSs even after vacuuming the bottom thoroughly dozens of time. The poor things were vigorous in other tanks, but as soon as a pioneer ventured in the dewormed zone, it would just lie lame on the substrate for a couple of days and then die. My last resort was to change the substrate...
Levamisole works great against nematodes and doesn't seem to harm anything else in the tank.