Two and half weeks ago I stopped running the phosphate reactor as the media needed to be replaced. Finally this weekend I was able to replace the GFO and get it running again. Also, around this time I increased the time the tank lights stay on due to family complaints. I now timed the lights to be less. During this two week period I noticed a small out break of HA and I plan to scrub the few rocks and put them back, like I said its not much yet. I was thinking of adding a Tomini tang to help control these small out breaks. Good / bad idea? I plan to do a water change this week as well.