Duncan Skin Receeding !

[Matt-Toynton]

Hi all

 

Got a Duncan from the LFS a few weeks back, has been looking good until last week, when it closed up for a few days, it came back out but never really fully. Water quality all checks out good so thought maybe it didn’t like it’s place in the tank, upon moving it I noticed some of the skin on the stem receding and is now white where it was green. Has anyone ever experienced this - I fear its not good and don’t really know what to do, and what’s wrong with it, all other corals seem to be fine. It’s not in the reach of any other corals to get stung either ,I’ll try and get a picture up

[Andreww]

My huge Duncan (30+ heads) started going downhill right after a 100ppm dose of Magnesium.... So check your levels. They’re the first to show signs of stress if water chemistry is off.