Originally Posted by dougolasjr
I did treat with Dog Dewormer, a few weeks ago, but I did not have any problems until now. Still no change in all of the snails. I am finding alot of empty shells.
Everything I've read on using canine dewormer in tanks warns that it's lethal to any snails left in the tank--and snails should only be reintroduced to a treated tank with great caution as the stuff doesn't naturally break down in the substrate so wc/carbon aren't guaranteed to remove it all.