Shouldn't be a problem to move them. I netted all of mine for a salt dip and did not lose any after the stress. Id be extra careful with your decision since you will want to me 100% sure whatever you use on those snails is gone before you put them back in. Might want to buy an assassin snail instead of a chemical route.
Have you tried putting in a piece of zucchini and taking it out when it is full of snails?
Have you tried putting in a piece of zucchini and taking it out when it is full of snails?