I auto-dose two part. It seems consistent and stable for the most part. What I'm not sure I understand is the destructive feedback loop. On occasion, my corals seem to have a bad day. The bad day causes them to stop taking up Alk. That in turn causes the Alk to increase which makes their day worse. I feel like if I only test once a week, my tank could easily careen off course between tests. Is this just a new tank thing? Are bigger colonies more stable? Would a calc reactor offer some protection against this risk? Is it a risk?