Hi everybody I'm new to the hobby and just started a 55 gallon aquarium, well it's been running for about 3 months. Before this it was a freshwater tank. I gave tried to introduce some turbo snails on different occasions but all have failed. I ran into a topic about copper in a forum and I had used copper sulfate ( to treat ich the brand was aquarisol) before converting to salt water. The snails that I put into the tank last no longer than 12 hours and only peak out of there shells. How real is my fear about the copper? Or is my tank just no ready yet?

