Here's the deal. Saturday Night everything seems fine. Sunday night the plant on the left in this first picture looked like the plant on the right. Leaves looked completly limp overnight, so I pulled it, flushed in and set it under low light. This is Monday, the plant from the left is dry, dead, the branches are almost like dry ready to cure. A close up of the one on the right shows how dead these leaves are and thats in one day. The plant in the Middle is the one that was closest to these two plants and appears healthy. The last picture show what the almost dead plant loos like after I cut off the dead fan leaves, and as you can see there aren't any fan leaves left. I put it under low light and when I looked at it this morning it hadn't died anymore since last night. This is an Ice plant 6 weeks flowering, not near maturity, and I am totally lost.
I did of course tear the pot apart looking for some explanation of what might have caused this, and I didn't find anything out of the ordinary. The medium is coco coir with about 1" of dry rockwool flock on the top, a little experiment to see if it will control fungus knats. Everything looked normal there, nice roots, medium moist around the merristem.
Any ideas?? VV