Zoanthids ate not opening fully and seems to have a problem. Looks like something brown is on them what is the best course of action?

[Zakaria_1999]

 

[VintageReefer]

Start simple and blow it off with a baster

 

[Zakaria_1999]

Start simple and blow it off with a baster

I did it yesterday and the next day nothing happened I will repeat for the next 3 days hopefully it works

 

[VintageReefer]

I did it yesterday and the next day nothing happened I will repeat for the next 3 days hopefully it works

is the colony on a removable rock

 

[Zakaria_1999]

Not all of it