Here's the scenario: I decided to do a test today out of curiosity ( I have done one on last Wed. but decided to do again because of the results I got). I've been doing EI dosing for the past week (1/2tsp-KNO3,1/8-KH2PO4&K2SO4 after 50% water change on Sunday then Tues & Thurs. CSM&B every MWF. Off day on Sat.) I have my light cut to 130W for 9hrs. since cutting down from 260W @ 8hours. Here are the results: NO3 @ 80PPM & PO4 @ 5PPM. And to make sure I tested again & same result. I also tested the tap water NO3 @ 5PPM & PO4 @ .5PPM. What am i doing wrong? Should I up my light back to 260W to help the plant eat all the extra PO4 & NO3? Or should I put more plants that are not root feeder as I have plenty of now? Pls. help I'm really @ a lost @ what to do ? Thanks.