As far as I am aware, only Unique Corals is carrying Triton Products in the U.S. I have been using Triton Elementz for three part dosing for about a year now. I've been impressed with it, and continue to use it. It's recommended that you have an initial water analysis, though I didn't do that. I have a variety of high-end water testing equipment, though cannot test for everything that Triton does. With Elementz you need to test your Calcium/Alk/Magnesium - but you'll be focusing on ALK. Once you start dosing, the goal is to keep your ALK around 8.3 dKH. In fact, it's the only parameter Triton recommends testing, as the dosing is said to keep other parameters in check, as long as ALK is stable. That was the selling point for me, as it allows you to only deal with one parameter, instead of 3. I used to test CA/ALK/MG weekly, but for the past 8 months or so have only been testing ALK weekly, keeping it in the suggested range. Overall, I've been quite happy.