I was at a local pet shop on the weekend and I was told that the WORSE thing to do to freshwater fish is to add salt. He said that it is not meant for them to live in salt and it could be deadly for them. I told him that I have read all over internet to put salt in the water for Ick. He said then you have to make sure to get the salt completely out which would mean a 100% water change and of course that is not a good thing to do. I was told by another pet store that I should put a handful of pennies in the tank and the tank would never get ick again.... would that not kill the fish as well though? It is good to be informed but it seems that the more people I talk to the more conflicting advice I get, I just don't know what is good advice and what is bad advice!!