Aragonite is not a chemical, but a natural mineral, Aragonite will not skyrocket your PH, so you can't overdose! CaribSea's aragaMilk is the easy way to add balanced Calcium, carbonate buffer, and essential trace elements like Stromium, Magnesium, and Barium to your Marine or hard water aquarium. AragaMilk uses the power of aragonite for fast mineralization, plus a boost of extra Magnesium to aid in coralline algea growth. The only thing it does not have is Iodine, you would dose that once a week. Has anybody used this product and if so how are the results? I hope this isn't just a Florida product, lol ,,,, Some LFS stores down here highly recommend it and use it, how's about you?