Euphyllia salvageable or too far gone?

[AndyR83]

Due to an unfortunate kalkwasser mishap, the alkalinity in my office tank at work spiked last week. I was out of the office for a couple of days and an ATO issue caused a kalk overdose. I became aware of the event around 36 hours after it occurred, and at that time my Alk was 13. This is a sharp/rapid increase from my normal baseline of about 8.9. Calcium was bumped up a bit too (475) but I’m thinking that’s likely not as damaging of a change from the normal level (440.)

The two most significant casualties were a fungia plate coral I had added a few months ago and a decent size frogspawn.

The plate coral looks like a goner:

What I’m really wondering is whether this Frogspawn is also toast. I really love this coral and I’m trying to determine whether it’s likely to bounce back from this or not.

As of today parameters are:

Temp 80.2
Salinity 1.025
pH 8.2
Alk 11.9 (I’m slowly decreasing it)
Nitrate 2.5
Phos 0.14
Calcium 450
Mag 1320

Thank you!

 

[Gtinnel]

If there is any tissue left there is a chance it’ll survive.

 

[Bucs20fan]

Not gonna lie, that thing looks like its been toast for a while now- Plate coral

The frogspawn is suffering from a bacterial infection most likely.