DEAD OR DYING DUNCAN?

[EeyoreIsMySpiritAnimal]

Under whites

Idk. As others said, something may be picking at it. But it's also VERY possible/probable that the low salinity has slowly killed it and/or the low nutrients have starved it. Not a lot you can do right now except work on your parameters and keep them stable once at appropriate levels. This coral might not survive but doing the above will help save other coral.

 

[moneyman]

The chunk out of the skeleton was like that when I got him. When I say fine he was 85% open I would say

 

[EeyoreIsMySpiritAnimal]

The chunk out of the skeleton was like that when I got him. When I say fine he was 85% open I would say

It's possible it was already injured when you bought it and is just now succumbing to the damage... Not to beat a dead horse, but this is why water quality is so important; so things that may be "sick" can have the chance to recover without additional stress.

You seem new to the hobby and I hope my comments aren't upsetting; you're learning and all of us lost livestock when we started out. Work on the tank/stability, and then try to buy coral (and fish) that look as healthy as possible... It's fine to try to "rescue" a few cheap frags, but you deserve to have healthy specimens in your tank that will grow and thrive

 

[moneyman]

Yo I'm sorry for the trouble he is starting to open up now. I haven't had success with Duncan's in the past, so I panicked. I also bought the coral online so thats why he has the chunk out, or I would not have picked him. I will still get the water up to par. Thanks for the advice!

 

[Uncle99]

Happy ending
That’s all that counts.

 

[EeyoreIsMySpiritAnimal]

Happy ending
That’s all that counts.

Agreed!