Anyone recognize these?

[LagoonBafoon]

I picked these up a few weeks ago for my LFS as assorted mushrooms. Can’t seem to find anything that matches them. I’ve been calling them the poor man’s jaw breaker. I don’t think they’re anything special, but just haven’t seen anything similar to them.

 

[Oldreefer44]

Not sure of the name but beware that they can become a pest very quickly. They can spread to any available space on your rock.

 

[Justfebreezeit]

Looks like a discosoma of some sort

 

[Mr. Mojo Rising]

I forgot what they are called, its a beautiful discoma, I've always liked the pattern on it. I got one about 5 years ago and it has covered the rock it was on. A few mushrooms have released over the years but the tank is packed with coral and loose babies have no where to go so it hasn't been able to spread. It looks like your rock is connected to the main structure so you might want to be careful about that, they will spread.