What are these?

[CamNasty]

I just got these two frags. They aren't doing so well. Can you tell me what they are and how I can bring them back?

 

[Timfish]

They look like Lobophyllia polyps. If possible find out what the conditions they grew under and duplicate those. Without a lot more information about your system including lighting parameters it's impossible to say what you migth try changing to help them.

 

[Sharkbait19]

I’m seeing possible signs of brown jelly disease, in which case the best thing to do is remove the infected corals from the tank.

 

[CamNasty]

Everything else in the tank is doing well with the current parameters so I don't want to throw the tank off for two frags. Could they be to high up or do they need to be fed with something?