At work now, so no water parameters:
I haven't really changed anything lately, but now that I think of it, I was away most of December on a business trip, and my wife took care of the tank during that time. When returning, the euphylla did not really extend properly for a few days (not before I made a couple of water changes and added fresh GAC
). I guess there is a good chance the health of the coral took a dip while I was away, and only parts of it recovered.
What should I use to cut of the dead and dying branches?
Btw. I haven't really seen any brown tissue. The branches that die just gradually extend less and less until they are gone.