Duncan in trouble

[frank the tank]

I have had this Duncan for 3 months or so, It was looking very heathy until it got knocked over about a week ago it was down less that a day. It now has greatly reduced Polyp extension an some of the tissue is now turning brown and looks like it is eroding away. I am just wondering is time will solve this or if there is something I can do about it.
My parameters are:
All: 9.2
Calc: 415
Mag: 1300
Salinity: 1.026
Ph: 8.0
Ammonia: 0
Nitrite: 0
Nitrate:0
Phosphate:0

Today

This three days ago I believe.

 

[Willu]

It kind of looks like cyano bacteria

 

[hyprc]

Can duncans get brown jelly disease?

 

[Willu]

Yeah they can, but that is definitely not bjd in the picture

 

[hyprc]

Yeah they can, but that is definitely not bjd in the picture

Just sayin, in one pic it looks brown/tan. In the next it looks red. He described it as 'turning brown' which is why I asked.

 

[ScottR]

I see you’re running 0 on nitrates and phosphates, you run the risk of dinos. They like clean tanks. Perhaps up your nutrients a bit. You could be starving your corals.

 

[frank the tank]

here it is with the white turned up to 100% the best description of the color would be a dark rust color. I have been worried about them getting not getting enough nutrients so I have been spot feeding reef roids once a week. And dosing KZ Coral Vitalizer and LPS amino acid concentrate daily. I just bumped up the amount my morning auto feeder adds and currently my skimmer is running 24/7 I could put it on a schedule cycling it on and off to help dirty up the tank if you think that would help. I am still new to reefing, less than a year under my belt just trying to keep it all alive.

 

[hyprc]

If it were me, I'd frag the head that's having the issue off from the other heads and just remove it. Maybe a quick iodine dip before you put the healthy heads back in.

 

[Exotic Coral Collection]

Try feeding them. I have brought mine back from almost dead by feeding it often.