Is there a reason why you no longer want to use IO? I have been using IO reef crystals for years and whenever i tried a switch in the past i always ended up going back to it. One reason is that its largely available in my area, and another is that it seems fairly consistant. In my opinion there is no "perfect, always consistant" salt mix out there. I test every batch of salt i buy before it goes into my tank. For one, i want to make sure that the correct chemistry is there, and for two, i do it so i can suppliment my mix to match the chemistry of the water in my tank. As far as coral growth goes, just buying a certain brand of salt isn't going to do it. Its not going to be the key factor to wether your corals grow or have stunted growth. There are too many other factors that contribute to this. I agree that some salts are superior over others, but i know that you are never going to find a salt with a perfect review out there. Its our job to test our salts and componsate for the lack of A, B, or C. If you are dead set on Salinity or Red Sea Coral Pro, I have heard good things about Red Sea. I have not really had any real experience with either of the brands, because of what i just stated, but i suggest you just do searches for reviews on those brands. It will give you a variety of views from different sources. Just make sure the reviews are current. Just like with any company, products can change over time as management and practices change. Reading reviews from years ago may have nothing to do with the product as it is today.
I am interested as to why you would like to switch salts and i'd also like to tag along on your journey to find out what salt you decide on and your feed back!
But i do see your point because i often play with other things. I have a tendency to change my plumbing around about once a year lol. I was just wondering if you were having negative results is why i asked.
