Hi , so I'd like to dose phosphate to my reef. I don't like the fact that the reef products never say what kind of phosphate is in their additives. I found on Amazon food grade phosphate. I wanted Sodium phosphate, however I can only find trisodium phosphate. I actually have no idea what trisodium is....the brand I found is in a white crystal form and supposedly 99.9% pure. Is this trisodium reef safe ? Thanks
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