Have some issues with cyano recently so decided to try chemiclean out. I'm 24 hours in the first treatment and it's doing well on the cyano, but every single one of my snails have died. The weird thing is that the four molluscs, the hermit crabs, and the peppermint shrimp are doing fine.
Is this normal and what other critters are susceptible?
Is this normal and what other critters are susceptible?