I am going to go against the grain like ReefRunner does as it pertains to IO.
It's ionic balance stinks!! I have gone through about a dozen bags of that stuff and I always get the same results: ALK
high and Ca
I switched over to Reef Crystals and it is a little better. The Ca
is higher but the Alk
remains the same. I think I am going to try Tropic Marlin next time. From what I hear, it is more ionically balanced than most.