Sorry about the delay in responding. The symptoms on the ones that responded poorly are little (or no) polyp extension, after a week or so followed by some color change and now they have what appear to be patches of brown algae growng on the stems that were clipped. Should I cut off all of the parts where they are discolored or just wait and see what else happens? They haven't turned totally white, although they have faded, and there is still some polyp extension, but too small for me to see, I can only see it in pics. I'll see if I can get some on here.