So.... I just got hit hard.. all my parameters are good .. a few days ago my plate coral started losing its flesh... its fairly new have had it for about a month or so... I have seen its glory many times.. just noticed yesterday my birds nest was closed as well as my mushrooms.. did a 30% water change.. this evening my wife noticed browning on my Kenya tree.. so once again I decided to do another pwc .. looks like my chili coral isn't to happy as well.. all my parameters are great ... next bulb change isn't for another 6 months... I switched to rodi water quite a while ago from the suggestions of this forum... any ideas guys should I take the hit and remove the corals that are having the issues?