Goniopora glitter,

Haim · Feb 17, 2026

I am an experienced reefer and have a Goniopora 'Glitter' coral that has been closed for a long time. I have performed various dips, and all water parameters (temperature, salinity, pH, nitrates, phosphates, etc.), flow, and lighting are optimal. The coral head is open, but the polyps ('arms') are not extending. I also perform weekly 200-liter water changes and tried targeted feeding, but nothing helps. I did not find any signs of brown jelly disease or other common infections. Could there be a specific cause or uncommon issue, perhaps related to specific Goniopora types or cryptic infections treatable only with specific methods, that I should investigate? I am looking for advanced insights from global experts."
Thanks
Haim

steveschuerger · Feb 17, 2026

Could you show a picture of the coral please. I’m not an “expert” but I do keep Gonis and have had modest success in the past. I have found that glitter Goniopora are some the more sensitive/temperamental ones. One thing is if withdrawn and no other signs just letting it be will let it stop pouting on its own . The more you mess with it the more likely it’ll stay the same or even get worse and die possibly. I’ve had them stay like that for months then come back and act as if nothing happened. What are Magnesium and Manganese at? Gonis seem to appreciate supplemental Manganese.

Haim · Feb 18, 2026

steveschuerger said:
Could you show a picture of the coral please. I’m not an “expert” but I do keep Gonis and have had modest success in the past. I have found that glitter Goniopora are some the more sensitive/temperamental ones. One thing is if withdrawn and no other signs just letting it be will let it stop pouting on its own . The more you mess with it the more likely it’ll stay the same or even get worse and die possibly. I’ve had them stay like that for months then come back and act as if nothing happened. What are Magnesium and Manganese at? Gonis seem to appreciate supplemental Manganese.

Haim · Feb 18, 2026

steveschuerger said:
Could you show a picture of the coral please. I’m not an “expert” but I do keep Gonis and have had modest success in the past. I have found that glitter Goniopora are some the more sensitive/temperamental ones. One thing is if withdrawn and no other signs just letting it be will let it stop pouting on its own . The more you mess with it the more likely it’ll stay the same or even get worse and die possibly. I’ve had them stay like that for months then come back and act as if nothing happened. What are Magnesium and Manganese at? Gonis seem to appreciate supplemental Manganese.

MG. 1450 , Mn. I add once a week.

steveschuerger · Feb 18, 2026

Well the polyps are still showing their fringe which is good. I had a red one so withdrawn it was a pinkish white with nothing showing other than its skeletal globe and it came back a few months laters later. So the only I can say is find a quiet flow wise space and maybe a little darker. Are there any other corals that could be aggressive near it?

CCK_8814 · Feb 18, 2026

What’s your phosphate, nitrate & alkalinity? Are you dosing manganese?

Haim · Feb 18, 2026

steveschuerger said:
Well the polyps are still showing their fringe which is good. I had a red one so withdrawn it was a pinkish white with nothing showing other than its skeletal globe and it came back a few months laters later. So the only I can say is find a quiet flow wise space and maybe a little darker. Are there any other corals that could be aggressive near it?

Thank you for your help .