Seems like for the last week my mushrooms, toadstool mushroom seem to be shriveled. Elegance is not opening like it has been . Only thing that looks unaffected is the open brain....even my GSP are not opening. Fidsh are fine and eating like crazy. Did 2 water changes both approx 15-20%. Been doing salt tanks for approx 30 yrs and never seen this. No light change. salinity 1.025, phos-0, alk-9, calcium 400. nitrates -0 mag is about 1380. Any ideas would be welcomed and appreciated.

