i dont recommend it. everyones tank is different in terms of elements that are depleted but for my tank it is just a waste of money. ive tried a couple different salts, kent, oceanic, reef crystals, and IO. i do a 10% water change once a week and haven't notice any betterment from any one salt mix. i just look for the deals on the 200g boxes of IO now and save time and money.
i was using a reef mix for a while and then my Mg got over 1500 and killed my pulsing xenia. i dont know if you can attribute this to the mix since it says 1450ish or something i believe. i stopped using it after that and now have had new pulsing xenia colony for about 4 months.