"Soft" corals
My zoas have been closed for about a week now, they seem to be stressed out for some reason. All tank parameters have been good. Ph 8.2, ammonia 0, nitrates 0, nitrites 0, cal 400 and mag 1200. The dkh did get a little lower than normal, down to about 7-7.3, but has since been returned to 8.5...