xtlosx
Just Reefin'
It was usually a few weeks after a water change that I would see things starting to down hill... a bit of cyano forming, less PE on SPS, things just didn't look great. So, I would do what anyone would do and perform another water change... unknowingly making things worse. It's almost like at some point, I did the water change that "broke the camels back". More cyano world form, SPS would start to lose tissue, and I would continue to do water changes while trying to figure out what the problem was. Eventually, it would come time to change the RODI filters (as normally scheduled), but since good things happen so slowly in this hobby, it took me awhile to figure out that the filter change was solving the problem.
Well if that's the case, in a week or so, should start getting better.... so far, it's getting better and cyano is burning out all over the place. From the pictures you can see the sand cyano is burned out going away cyano and not fresh matting.