Duncan killed gorgonian?

[kbnh]

Can a Duncan kill a gorgonian? I’m wondering if it’s coral warfare or something else, very well could be something else but the gorgonian was flourishing for a year before closing up for a few days and now shedding down to the interior skeleton, not much in changes to the tank but I’ll be doing a big water change tonight just in case.

 

[Timfish]

Can you list water parameters for the last several weeks (or months)? It's "possible" teh duncan stung it causing a secondary infection but I would look at possible environmental changes or stress events ove the last several months.