I always kept track of Alkalinity and Calcium as well as how much of each was dosed. This allowed me to know, fairly accurately, what the consumption rate was over time. The trends for these, especially ALK, can give a general indication of the coral health.I always wondered what the point is of keeping track of this? Why not just test, make sure you're on target, if not address it, then move on the next time you test? What is gained from tracking?