Hey so with my tank I like to understand the why of problems while I’m fixing it. I understand I can dose nitrates but I would like to know the chemical reason why I would have undetectable levels of nitrate in my reef tank (salifert test). I have NO PROBLEM getting high Po4 lol i actually struggle to keep Po4 low lol. Any thoughts on why I would have low nitrates that my salifert test can’t pick up?

