I use IO Reef Crystal. I tried red sea and H2O but my zoanthids were not doing well at all and I almost lost them all. I switched back to IO and they all came back to good health.
I used H2O for about a year and always had some brown deposite in the mixing baril. Never had this with IO or IO Reef Crystal. I will stay with IO Reef Crystal as this give me the best results. I have SPS, soft and LPS and all my corals are doing great.
NO matter what salt I was using, I always had to dose, so why buy a very expensive salt like H2O if I still need to dose about the same? no point. I am very happy with IO RC.
I use the BRS 2 part dosing and just got their pumps as well.
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