I currently dose a 2 part (Kent Marine Tech CB A and B). My calcium is up to 450 and my Alk is down to 8 DKH. I know that this is in the acceptable range but they are each heading in the wrong direction. MY PH seems stable at about 8.1. How can I maintain or raise my alk a little while keeping my calcium from getting any higher. Should I just dose the part A for a few days? Thanks!