ok i was thinking in the future when i have more corals of getting a MG test kit with a strontium kit. spelling?? they both are kind of expensive. what levels of them should i look to have. i have heard that in a reef you would want C to be at least 400-425
If you plan on a reef, I would switch to Reef Crystals for only a couple bucks more. The latest formula is pretty high in alkalinity. As TL100RSquid mentioned, I doubt you will need to dose alkalinity or Ca much at all if you are doing regular water changes. Cerayinly not until the tank is stocked a bit with corals and they start to grow. Maybe some Magnesium now and then. I find my LPS start going south if Mg dips below 1300.