I got a leather coral form the LFS a couple weeks ago. After placing in my DT within a few hours he expanded to about twice original size. For the two weeks he expands when the light is on and contracts at night. This week he has stopped expanding when the might is on. I have not moved him and water has stayed reasonably steady with only a small drop in salinity from 1.023 to 1.021, which I am working to bring back up. Could the salinity change cause this behavior? Am I at risk of losing him?
Scott
Scott