Friday I’ll be receiving my first N-DOC test kit. Can’t wait to get some insight into my tank’s nutrient problems. Currently suffering from a stringy brown bacterial outbreak that is coating every part of my display tank and irritating some of my corals. I believe it was spawned by my overzealous use of an amino acid supplement. But a month before I was also suffering from low nutrients due to under feeding. I should be able to get the N-DOC in the mail by Saturday (1/12/19). I’ll share my findings a soon as Triton notifies me.