So...I'm very new to the world of coral. I received my Ca, Alk and Mg test kits today and tested right away. My levels are low. My Ca is 215, my Mg is 1050 and my KH is 6.4. Do you recommend dosing, or should I just do a water change and see if that helps? The tank is due for a water change. I would like to start getting my levels stable, but I'm not sure how to go about doing that. Any tips would be greatly appreciated! I have so much to learn about coral. Thanks!!