[Myka]

I have tried a bunch of different salts over the last couple decades, but I always go back to IO because it is cheap and I have never noticed any benefit to using a different salt.

I have been using H2Ocean for 2 1/2 years in my reef tank. I figured if any salt will make a difference it will be H2Ocean because it is natural salt, not synthetic like almost all other salts. I have to add magnesium and potassium to the freshly mixed H2Ocean saltwater to get the levels right. I have enough H2Ocean salt for two more water changes, and after that I will be switching back to IO. I haven't seen any benefit to using H2Ocean over IO. It will be interesting to see if there is any difference switching back to IO now.