My 7 months tank struggling with nutrients, nitrate and phosphate being consistant. I dosed phosphate, and nitrate but they so inconsistent that my corals died as a result. My phosphate now sitting at 0.02, and 6.8 nitrate super low. I have cyano on sand (not extending but there) i have green slimey cyano as well. And GHA taking over. I have a nyos skimmer that i havent turned on after my nutrients hit 0 few months ago. Even after i started dosing neo phos, and neo nitro. It wa super inconsistent that one day my phosphate would 0.02 and i jump to 0.08 and tick off a coral. What should i do to actually fix that nutrient issue going to my tank?