How do you supplement calcium?

[GrimReefer]

For those of you who use calcium supplements, what do you use? I've had a bottle of Aragamilk that I've used with good results. Anyone else use this? I'm wondering if it will suffice as I add more stony corals. I also have Seachem calcium and alkalinity supplements that I rarely use out of fear and lack of water testing. I want something simple, that doesn't require me to contantly test my water to get proper dosage. Any such thing exist?