I rarely do a wc and when I do my corals more importantly my sps hate it. My RBTA disappears for a week and generally things look terrible. I never have nitrate of phosphates and feed heavy. 200 gallon total water, my skimmer is rated for 500
Ok, this brings up one of my long-held anecdotal theories: An infrequent water change is a potentially significant disruption to a system that has been operating "on autopilot" for a period of time, and this may have some negative consequences attached...Disrupting stability and the "normal" (whatever that might be) for a closed system that appears to be functioning well can be a stressor to the inhabitants...I think you could make a pretty good case for that theory...Or not...:squigglemouth: