I finally got my Hanna reactants and tested yesterday. (I’ve been relying on api), and my PO4 was 1.26!!!! I had to look a few times to make sure it wasnt the timer still counting down [emoji23]. The no3 was 10! I do bi-weekly water changes, have an ATS, and have a MASSIVE external deltec skimmer so I was shocked it could be that high. I expected high, but not that much. So, I checked my tds and it was reading 12!! [emoji37]. So, I wasn’t sure if the tds was causing the super high readings bc it was so high, or if I need to up my nutrient exportation. Nothing is brown and everything is super happy and growing good. I did change all the filters and DI. Also added a second DI chamber and now have zero TDS. I also added some phosphate rx to bring it down some. I don’t wanna do anything too drastic bc all my corals are doing good Sent from my iPhone using Tapatalk