I test twice a week, my dkh drops from 10-7 in about a week to 10 days, calcium from 420-400. In was hoping AFR could hold me closer to my parameters after a water change, but alk jumped quickly, with calcium moving the opposite direction, which just seemed odd to me. I was hoping to just dose 1 product as opposed to a 2 or 3 part with matching containers and dosing pumps.You are sort of using the product wrong. Note the application & dosing instructions. It notes at the beginning to adjust your systems calcium, alkalinity, and magnesium to your desired levels. Use whatever 2 part or single components to adjust to desired values. Then follow their dosage guidelines. Then the flow chart to adjust.
Your display is new. Have you run a series of tests daily or every other day, or twice a week for a couple weeks to see what your consumption rate(s) are? You need to understand what that is before anything else. It very well could be that a water change alone is enough.
But alk went to 10 and calcium to 360, which could be a product of increased coral growth with respect to the calcium. I’m going to dial back my dosage to 8-8.5 alk and keep it stable there, and see if I need to dose anything else. Even with water changes my alk drops quickly. Maybe I eventually switch to the balling method or whatever, but wanted to give AFR a run.