I have a tang that has little black spots all over it and the other week i got rid of them by giving him a fresh water bath for about 2 minutes but he acted drunk in the freshwater floating to the bottom is this normal.How long should you keep him in and is it safe thanks jer
I was told to give a bath of 3-5 minutes. It is safe as far as I know. I tried a 5 minute bath with a sick fish I had and he stayed belly up for the whole time. As soon as he went back into the salt water he was fine.
3-5 mins is about right. It does not always apply but a rule of thumb is that during the time, if a fish does not react to your presence then remove it immediately.