I think we always referred to it as new tank syndrome.
I started a new tank in August, and particularly struggling this time after years of success. sps beaching, browning, stripping etc.
main parameters steady and in range.
new tank was started on real reef rock which is a ceramic brand, that's been in the 'Ocean' or at least that environment, but comes dry.
anyway I presumed after lots of head scratching that it could be new tank syndrome, which was normally something you would see disappear after 6-12 months and then suddenly everything grows, but after waiting a long time watching corals in varying degrees of state. I decided to get an icp test done
main parameters were as i had tested and ideal , apart from dkh was slightly high for the nutrient levels. however a list of 11 different trace elements were undetectable at the lab

, so i can only think that the artifical rock must have some uptake as generally my calcium reactor has help keep these stable for many years.
couple of water changes later and trace dosing im hopefully on the right track now