Is this duncan OK

[MZabel67]

Does this duncan look happy?

 

[skey44]

Polyps open that’s a good sign. I’d say color looks a little brown and polyp is stretching/reaching which may be from a variety of factors. Do you have a pic under white/ daylight spectrum?

 

[UnnamedReef]

Looks open and happy. Both of mine are brown on the undersides and back of the heads as well and green near the mouths.

Baste some mysis shrimp or pellets at it. If it eats what you offer it then that's another good sign. I feed mine weekly