So my corals have been closed for close to 4 days now which includes my frogspawn frag, blue zoa frag, and mushrooms. The only corals that are open are the Gsp hammer frag and the candycanes. I haven't moved any of these corals since I placed them in. They were fully opened a week ago but just stopped when I did a wc a couple of days ago. One thing that I think may be the problem is I got kind of lazy and didn't top off the water with rodi. The salinity increased a good amount before I did a wc and dropped it back to 1.026. Maybe the corals are "shocked"? Just tested my water and there are no traces of ammonia, nitrite, or nitrate. I do weekly water changes so i don't think the calcium and other elements are the problem.