My duncan dont open

[javiergamez2023]

Any suggestions, my duncan hasn't been open for the last 2 weeks, all my parameters are fine, also my other corals, I moved 3 times already and nothing, any advise

 

[SnazzyUrchin792]

How old is your tank? What other corals do you have? What exactly are your parameters? Are you sure your lights are strong enough?

 

[PeterC99]

Welcome to R2R. Sometimes these things happen and they do resolve by themselves.

 

[williamCreery]

This should help answer all your questions and concerns.


Post in thread 'Duncan coral suddenly closed up'
https://www.reef2reef.com/threads/duncan-coral-suddenly-closed-up.650723/post-6533561

 

[SnazzyUrchin792]

This duncan looks more than just closed up to me. Those two large heads look dead.

 

[Ocean_Queenie]

Hello & Welcome

 

[vetteguy53081]

Any suggestions, my duncan hasn't been open for the last 2 weeks, all my parameters are fine, also my other corals, I moved 3 times already and nothing, any advise

Assure moderate light and water flow and that phosphates are not elevated. Salinity- 1.025

 

[vetteguy53081]

 

[WalkerLovesTheOcean]

Welcome to reef2reef!

Duncan's are very resilient, so as long as you fix the problem I am sure it will open back up!

 

[CO2TLEY]

 

[twentyleagues]

Have you ever directly fed it. I agree with whoever said the big heads are probably goners. Duncans like/need to eat either by catching stuff in a broadcast feed or by you directly feeding them. I directly feed my duncans at least once a week usually twice.

 

[kevgib67]

Welcome, glad you are here and sorry for your troubles.

 

[shakacuz]

welcome aboard the r2r board. hello from PA!

 

[zheka757]

Welcome to R2R!

 

[Jimbhoy13]

Doesn’t look good. Hope it recovers.

 

[Gman83]

Welcome!

 

[Dmmz]

Welcome to R2R

 

[1112-425XL]

 

[crazyfishmom]

My Duncans are my best growers but they’re also great canary in the coal mine type Coral for me. If my parameters change slightly, they let me know. Can you post your parameters?

 

[Naekuh]

Duncans like/need to eat either by catching stuff in a broadcast feed or by you directly feeding them.

I rarely feed my duncans... i do know they love to be fed, but i had a cleaner shrimp that would play wack a mole with it, when i used to fed it... and now its being hosted by clowns, that will attack the pippet or anything for that manner that gets near it.

But it has grown this big with almost no feedings. I started with only 2 heads...

Roughly a size of a large softball, big enough for my female clown to hide inside if needed.

So i don't think feedings are absolutely necessary, or my clowns have been sneaking it food when i don't notice it.

:thinking-face:

My Duncans are my best growers but they’re also great canary in the coal mine type Coral for me. If my parameters change slightly, they let me know. Can you post your parameters?

I +1 with this statement..
If something is wacked in my water params, my duncan imediately lets me know.
Almost like my Zoa's.

But i don't think they have ever receeding far back as yours in that first picture, which leads me to believe i think those 2 big heads are dead.