My primary supplement for alk/mag/calc is kalkwasser. I also use AFR. Since getting my major elements stable, I have been lowering my AFR dose slightly to try to drop down my alk slightly. Its basically just buffering the numbers at this point. The reason I use AFR is for trace elements. I am down to a daily dose of 2.4ml of AFR per day in a 109 gallon total volume reef. With that small of a dose, is it possible I am even seeing a trace benefit? Would I be better off to consider a trace element dosing program such as Captiv8 that doesnt buffer the major elements? Thank you.