Hey everyone. I have a quick question regarding raising calcium and alk. So my alkalinity has been hovering around 7.0 dKH and calcium around 320-330ppm. My question is how do I raise the numbers just a little bit higher? I have a 20g tank, that has no sps in it and the coral has been fine as of now. I’ve heard about using AFR, 2 part dosing, and water changes but I just get a little confused about which is the best method or which would be more suitable for a tank my size and what is currently stocked. Thanks everyone!