Everything was so good in my 46 salt water tank. I had crushed coral in the bottom and I was going to change to sand. No magor problem, I was going to change to sand very slow. But I just found out the cow fish in my tank has ICK. I new after it was to late it was a mistake to put a cow fish in there anyway. I took all the carbon out of the filters and began treatment. I will probally loose my clown my two star fish clean & up crew also 2 damsels. I am going to try to save my set up but I am worried I am going to have to start over.