Tested no3 which is .0 as for po4's I don't have a proper test. But I can't see it being present is any dangerous levels. I'm only feeding frozen these days, RO/DI WITH 0 TDS. Besides, all other LPS and softies are doing great, well with the exception of my zoas-lol.
Tom, when I dose my 2part I add it to my return chamber which is just about level with my MP10. Trying for the highest flow area. But right below my MP10 is the CandyCane. Could the CC be getting irritated by the 2part? See pic...