I found out that my 10 gallon has some fish with ich. Now, I just found this out, no time to go to the store for anything, and work all day/night everyday except sunday. All I could find in my cupboards was some fine grind french mediterranean sea salt. Ingredients listed; sea salt, magnesium oxide, and yellow prussiate. Now, is this the same as table salt? Will it do anything for my tank? I just added a heater to the tank (not sure if it works, really old but orange light on), I dont use heater because of socal weather. The 10 gallon has a powerhead on it, and only 3 fish seem affected by the ich (so far).