HELLO Y'ALL! So I saw the alum powder dip trick for killing snails on youtube (Girl Talks Fish) and it worked wonders. I absolutely despise snails but some got into my tank and now I'm seeing more and more of them. I'm trying to get rid of them but the tank is already established and my fish are already in there. Obviously I don't want to harm them at all. BUT I need to kills these snails. I have a couple assassin snails but it's a 60 gal and they can't kill the other snails fast enough. If I put in a small amount of alum powder, would it harm the fish? Thanks for your help guys.