I have a sick gold fish that I am suspecting of being harmed my Nitrites or nitrates and he has been in a "bent" position. I have been told that salt baths might help. I have salt that says "this salt does not contain iodide a necessary nutrient". It does not say iodized salt. The question is are iodide and iodine the same? Is this salt safe for me to use? In the ingredients it says salt and yellow prussiate of soda (which I think is a chemical).. I don't want to use something that will make him worse...help?? :