I can't really give cories a salt bath

But I think it might be anchor worms. There aren't very many though, and they're very small, so I think if I get treatment soon I can stop it before it kills any of my fish.
I'm looking at hikari cyropro and microbe-lift lice & anchor worm.
But the thing is, I have 2 assassin snails and 11 amano shrimp that I don't want to kill!! Does anyone have experience with either medication? I can pick up the microbe-lift one tomorrow on my way home, but I'll have to order cyropro off of Amazon.