Ok I just got in a frag pack 15 new sps corals I checked alkalinity Hannah checker 8.1 calcium is 462 do I just need to dose alkalinity to get it up to say around 9 or is that to much? And no dosing calcium correct? Thanks
Those values are fine where they are. Keep testing alk daily and when it drops to 7.8, use an online calculator to determine how much you need to dose to bring it back to 8.1, and split the dose over three days. Keep testing alkalinity and dosing daily as needed. You can start adding an equal part of calcium once your ca drops to around 450.