I have been maintaining my SPS 105G tank over a year now by doing weekly 15 gallon water changes. I have not missed a single one yet. My nitrates and phosphates have always been near 0 with my ALK being close to 10. Most of the SPS have always been understandable pale in color. I have tried feeding heavier with no luck. Rather than dose to elevate my nitrates, would switching to every other week water changes help or hurt my situation? My tank has always been extremely stable...I am afraid to throw off that balance. The coral does seem to respond to the water changes by the addition of trace elements I assume (although it could be in my head lol).



