Hi, I have a 80 gal mixed reef tank, 25 gal sump, ATO. Currently at 8.6, 422, 1230. Having a hard time getting the Mg levels to 1400. Using Red Sea's Reef Foundation system (liquid). Looki g for recommendation of using Red Sea's Reef Foundation system vs Kalkwasser? I read Kalk is a great way to go using an ATO and wondering how it compares to dosing with the Red Sea's Reef Foundation system, e.g. ease, trace element consistency, risk to tank inhabitants, etc. Thank you for helping out the newbie!