Oldude

In the past 6 months my tank has been going through a slow death. All normal parameters are normal so it's been very puzzling. The only thing left to do that I hope will resolve this is to take everything out of the sump (fuge, rubble, etc.) and give it a good cleaning and leave it bare afterwards. I have had RTN, STN, Polyp bale out, etc and am at a complete loss. I have lost many of my favorites with over 30 colonies and countless small pieces gone so I am not a happy camper in regards to my reef ...