Wayne Sallee wrote:

You are correct. That part is dying. A close look at the before picture
shows that this section was not happy even then. It could have been
injured in transport. Make sure your water quality is good, and that the
injured area does not spread.


So, do I need to pluck this one off the rock and discard it? The cleaup
crew don't seem to be touching it and I'd hate to see whatever this is
spread to the rest of the rock.

tia,

mark h