Need help with mushroom

[downonthereef]

Hi, please see the attached photos, they pretty much explain themselves.

From purchase, to arrival via post, to this morning after being in my healthy tank.

What do I do? This has ripped itself in half over night?

 

[SeaworthyAquatics]

I'd try an Iodine dip, Polyplab reef primer is also good for infections like this, but doesn't look good sorry to say. Looks like its mouth has melted and it is continuing outwards. Once the mouth is compromised on a lot of coral, survival chances are slim. Mushrooms are tougher than most coral though and it may bounce back from a small piece left behind. Dip and hope for the best.

 

[downonthereef]

I'd try an Iodine dip, Polyplab reef primer is also good for infections like this, but doesn't look good sorry to say. Looks like its mouth has melted and it is continuing outwards. Once the mouth is compromised on a lot of coral, survival chances are slim. Mushrooms are tougher than most coral though and it may bounce back from a small piece left behind. Dip and hope for the best.

Thanks, super frustrating though. Only arrived yesterday lunchtime and it's deteriorated like this in less than 24 hours