> On the cap of my bottle of SeaChem's "Flourish" there is a sticker that > says to refrigerate after openning, which I did. Well, I was wondering; Is > this really needed? I haven't seen any comments on here about > refrigerating PMDD or any other trace elements or mineral mix? What is it > (or in it) about Flourish that requires it to be refrigerated? I suspect that Leo has vitamins and probably some chelated calcium in the mix. Both are labile. Craig