I checked for nitrates and phosphates in both the top off container and the tank tonight. All at zero. Hmm. I must be missing something. The fuge is on 24/7 and the skimmer is cranked up, tds at zero, nitrate at zero, phospates at zero. I am feeding lightly, one small pinch of prime reef flakes every couple days. Turned down the amount of light the other day. What am I missing? I am tried of the hair algae!!!