Soo, I dosed fritz copper to treat a new tang that I got from my LFS before I put it in my established tank. My copper is 1.5 and everything else in the tank parameter-wise is spot on, but my phosphates are such a high number (above 3 for sure), I have never seen it. Does dosing copper throw the phosphates through the roof or what? @vetteguy53081 opinion reef master?


