Thanks! Now that I looked back at my notes from the previous ms test to this oes test I am at 2x not 3x. My mistake. I remember thinking I wasn’t going to push it to 3x without running another MS test.So you should not be tuning the dailies off of ICP-OES results (yours appear to be OES results, judging by the OCR in the test ID).
In order to tune multipliers for daily elements, based on the instructions in the handbook and the calculator, you need the ICP-MS test (which of course is the more expensive one).
Tuning dailies blindly is very risky business, and not something I'd recommend. 3x is where you should stop, as those elements should never appear on an OES test (which it says in the handbook and the dosing calculator). Manganese / iodine / vanadium are the exceptions.
Most importantly, I'm certain the faded colors are the result of your nutrients being undetectable. Get that phosphate up to 0.1 ppm, and keep that nitrate up as well (> 10 ppm is where I like it personally).
Still curious why I lost an acro with a previous cal correction and again with this correction. Just one frag out of approximately 20 acros both times. I’m assuming my guess is a localized spike in alk as it circulated through the tank from the return.




