What is everyone using to dose N03 and Po4? I have 90 gallons total system volume running full triton method. The tank has been up about 5 months and I have never seen a po4 reading and saw a 5ppm No3 reading once. I have a pretty good fish stock. Tried dialing chaeto light back, feeding more, using Brightwells No3 and Po4 but i feel like its to watered down to get a reading. Any suggestions? ICP/OES Testing should be done today or tomorrow.