Sinularia Randomly Closed

[Tingzalawazoo]

There is only one clown in the tank and I’m certain he didn’t touch it. I’m certain I didn’t touch it. I’ve had the blue light on for about 8 hours today. The pic with the blue light on was taken only twenty minutes or so before the one with the closed coral. Any other reasons it would close other than touching them? I have 5 other corals in here all doing great and fully open.

 

[Mark Novack]

They can close because of many reasons. It can be benign or a sign of something off. They will close up to slough off the outer tissue layer.

 

[Losirk]

shedding

 

[glency]

Normal