Sick Duncan/Whisker Coral?

[James G]

Hello everyone, I bought two whisker or Duncan corals a few days ago I put them beside each other at the bottom of the tank on the sand, one of them was doing amazing for a few days then today when I turned on the lights it was open but smaller than the other days, its tentacle things were hanging down, and its more of a green color than yesterday, does anyone know what's happening?.

 

[Brookster123]

Picture

 

[bribo12]

Has it opened more once the lights have been on for a while? My Duncan takes an hour or so to fully open after lights on

 

[James G]

yes after a while he was normal

 

[Sniperhank]

It doesn’t sound like there is an issue to me. Duncan are extremely hardy. They can open and close for many reasons, most are normal.
Of it were closed up for a long period of time I would move it to another location in the tank to see if that helps.

 

[Brookster123]

Yah, they're crazy resilient. I had one that was closed tight for 3 months and just popped open one day,.been great ever since.