I treated my 55 for hydra with fenbendazole removing my nerites and mystery snails to another tank for a while. After words I ran carbon for about 2 or 3 weeks. Did 3 large water changes. Snails died after reintroduction. So I waited around 4 or so months doing regular maintenace of WC every week or so. Then I did a major rescape, stirred up the substrate and everything, did 70% ish wc and reintroduce a mystery snail. After two weeks acting totally normal, so I added asecond, and now a couple more weeks later still going strong.
TLDR; my advice, time and patience and many water changes being sure to get the substrate reasonably well, and run carbon as long as you can. Then put one snail in and wait a couple weeks to a month and watch its behavior. If it hardly moves around and keeps locking itself up tight for days(more than the usual amount for the snails) repeatedly it isn't doing so well.
Also I forgot, during the treatment my pest snails all survived, mini ramshorn and ramshorn all showed no sign of being affected. They didn't slow down, hide, no population drop or anything. I've grown to like the ramshorn snails, I wish they populated a bit faster in my tanks but i think i may feed a bit too conservatively for a big population boon.
Last edited by Darkblade48; 01-20-2020 at 08:26 AM.
Reason: Please use the edit function for back to back posts to keep threads cleaner