Iv got a small amount of cyno in my tank.This started after I put in phosphate remover and my phosphates dropped to 0.035 and my No3 level is still at 2.5 ppm.If I add in No3 absorber will it stop the cyno or should I start dosing with Red Sea Fish Pharm NoPox? All my other paramaters are normal ToC 26-28 c Ph 8.3 Alk 8