Please provide me some suggestions on my phosphate/nitrate issue. About a week and a half ago, I was fighting green hair algae and my Phosphates were .12 and nitrates were 9.7 (using Hanna Checkers) . I dosed NOPX per directions and checked and re-dosed every 24 hours into my 130 gallon reef tank. I have stopped dosing NOPX once my nitrates stated reading below 1 ppm. Today my parms are phosphates .12 and my nitrates are .8 . I know my Nitrates should be between 1-3 ppm, but my phosphates are really out of wack. Not sure how to get this down between .01 - .03 PPM. Any advise would be greatly appreciated. I've only been feeding my fish a small amount of nori on a clip. I change my filter socks and clean the skimmer daily. I'm also using RODI water for my reef tank.