Is my torch coral dying what should I do?

[TGRandall]

Hello there! Purchased a torch coral on Thursday 8th August, seemed fine single head, some softies in the tank and a Duncan, parameters all stable and within range but it's not looking good! The two photos below are day one and today, any help appreciated!!!
Ammonia 0.5ppm
Calcium 435
KH 9.9dKH
Magnesium 1372.5
Nitrate 0
Nitrite 0
PH 8.2
Phosphate 0
Salinity 35ppt
I know the phosphate and nitrate need to go up but the tanks been running for years and I added a macro algae scrubber months back and it's shot right down lol but didn't think that would be instant death to the torch

 

[TGRandall]

Just had another check on it, doesn't look good, not sure on the cause

 

[Salty2021]

Don't think it's going to make it. I just bought one a did the same.

 

[TeamAquaSD]

Just had another check on it, doesn't look good, not sure on the cause

I would definetly pull that coral and dose a little iodine in the tank ( If you are going to add some iodine please read the dosing directions on the bottle )